Maybe this is the case and these are old(er) pieces. I don’t see an upload in the logs available.
But still there are many tries to delete those pieces:
"SatelliteID": "12L9ZFwhzVpuEKMUNUqkaTLGzwY9G24tbiigLiXpmZWKwmcNDDs",
"CS2UM6J5QHDWQT34H4H5ZL35FEEMHUZINSTDH26OLDZOCBDHECAA": {
"2022-01-31T09:41:44.354Z": "unable to delete piece",
"2022-01-31T10:41:54.056Z": "unable to delete piece",
"2022-01-31T11:41:52.533Z": "unable to delete piece",
"2022-01-31T12:41:53.313Z": "unable to delete piece",
"2022-01-31T13:41:52.962Z": "unable to delete piece",
"2022-01-31T14:41:54.998Z": "unable to delete piece",
"2022-01-31T15:43:49.476Z": "unable to delete piece",
"2022-01-31T16:43:04.748Z": "unable to delete piece",
"2022-01-31T17:44:25.327Z": "unable to delete piece",
"2022-01-31T18:41:51.393Z": "unable to delete piece",
"2022-01-31T19:41:51.972Z": "unable to delete piece",
"2022-01-31T20:41:57.918Z": "unable to delete piece",
"2022-01-31T21:41:49.669Z": "unable to delete piece",
"2022-01-31T22:42:57.248Z": "unable to delete piece",
"2022-01-31T23:41:50.698Z": "unable to delete piece",
"2022-02-01T00:41:50.840Z": "unable to delete piece",
"2022-02-01T01:41:49.440Z": "unable to delete piece",
"2022-02-01T02:41:49.487Z": "unable to delete piece",
"2022-02-01T03:41:50.003Z": "unable to delete piece",
"2022-02-01T04:41:54.783Z": "unable to delete piece",
"2022-02-01T05:42:30.732Z": "unable to delete piece",
"2022-02-01T06:41:44.367Z": "unable to delete piece",
"2022-02-01T07:44:23.124Z": "unable to delete piece",
"2022-02-01T08:41:44.414Z": "unable to delete piece",
"2022-02-01T09:42:04.175Z": "unable to delete piece",
"2022-02-01T10:42:14.248Z": "unable to delete piece",
"2022-02-01T11:41:48.801Z": "unable to delete piece",
"2022-02-01T12:41:48.712Z": "unable to delete piece",
"2022-02-01T13:41:48.989Z": "unable to delete piece",
"2022-02-01T14:41:44.463Z": "unable to delete piece",
"2022-02-01T15:41:58.785Z": "unable to delete piece",
"2022-02-01T16:41:47.078Z": "unable to delete piece",
"2022-02-01T17:41:44.808Z": "unable to delete piece",
"2022-02-01T18:41:44.376Z": "unable to delete piece",
"2022-02-01T19:41:44.519Z": "unable to delete piece",
"2022-02-01T20:41:54.092Z": "unable to delete piece",
"2022-02-01T21:41:47.830Z": "unable to delete piece",
"2022-02-01T22:41:48.557Z": "unable to delete piece",
"2022-02-01T23:41:45.073Z": "unable to delete piece",
"2022-02-02T00:41:46.515Z": "unable to delete piece",
"2022-02-02T01:41:46.742Z": "unable to delete piece",
"2022-02-02T02:41:49.001Z": "unable to delete piece",
"2022-02-02T03:41:47.703Z": "unable to delete piece",
"2022-02-02T04:41:47.607Z": "unable to delete piece",
"2022-02-02T05:41:44.402Z": "unable to delete piece",
"2022-02-02T06:41:44.523Z": "unable to delete piece",
"2022-02-02T07:41:49.087Z": "unable to delete piece",
"2022-02-02T08:41:49.217Z": "unable to delete piece",
"2022-02-02T09:41:51.332Z": "unable to delete piece",
"2022-02-02T10:44:10.729Z": "unable to delete piece",
"2022-02-02T11:42:33.730Z": "unable to delete piece",
"2022-02-02T12:43:03.966Z": "unable to delete piece",
"2022-02-02T13:42:27.791Z": "unable to delete piece",
"2022-02-02T14:43:39.545Z": "unable to delete piece",
"2022-02-02T15:42:00.066Z": "unable to delete piece",
"2022-02-02T16:41:38.892Z": "unable to delete piece",
"2022-02-02T17:41:41.589Z": "unable to delete piece",
"2022-02-02T18:41:30.223Z": "unable to delete piece",
"2022-02-02T19:41:32.661Z": "unable to delete piece",
"2022-02-02T20:41:31.979Z": "unable to delete piece",
"2022-02-02T21:41:30.915Z": "unable to delete piece",
"2022-02-02T22:41:37.037Z": "unable to delete piece",
"2022-02-02T23:41:28.822Z": "unable to delete piece",
"2022-02-03T00:41:32.566Z": "unable to delete piece",
"2022-02-03T01:41:29.164Z": "unable to delete piece",
"2022-02-03T02:41:27.526Z": "unable to delete piece",
"2022-02-03T03:41:43.698Z": "unable to delete piece",
"2022-02-03T04:41:49.403Z": "unable to delete piece",
"2022-02-03T05:43:00.238Z": "unable to delete piece",
"2022-02-03T06:41:24.375Z": "unable to delete piece",
"2022-02-03T07:41:24.616Z": "unable to delete piece",
"2022-02-03T08:41:26.091Z": "unable to delete piece",
"2022-02-03T09:41:26.511Z": "unable to delete piece",
"2022-02-03T10:41:27.007Z": "unable to delete piece",
"2022-02-03T11:41:24.462Z": "unable to delete piece",
"2022-02-03T12:41:27.801Z": "unable to delete piece",
"2022-02-03T13:41:27.861Z": "unable to delete piece",
"2022-02-03T14:41:27.389Z": "unable to delete piece",
"2022-02-03T15:41:28.293Z": "unable to delete piece",
"2022-02-03T16:41:24.464Z": "unable to delete piece",
"2022-02-03T17:41:24.364Z": "unable to delete piece",
"2022-02-03T18:41:26.641Z": "unable to delete piece",
"2022-02-03T19:41:24.655Z": "unable to delete piece",
"2022-02-03T20:41:25.048Z": "unable to delete piece",
"2022-02-03T21:41:26.631Z": "unable to delete piece",
"2022-02-03T22:41:24.510Z": "unable to delete piece",
"2022-02-03T23:41:27.429Z": "unable to delete piece",
"2022-02-04T00:41:28.016Z": "unable to delete piece",
"2022-02-04T01:41:24.389Z": "unable to delete piece",
"2022-02-04T02:41:24.462Z": "unable to delete piece",
"2022-02-04T03:41:24.651Z": "unable to delete piece",
"2022-02-04T04:41:26.767Z": "unable to delete piece",
"2022-02-04T05:41:24.624Z": "unable to delete piece",
"2022-02-04T06:41:27.214Z": "unable to delete piece",
"2022-02-04T07:41:24.389Z": "unable to delete piece",
"2022-02-04T08:41:25.413Z": "unable to delete piece",
"2022-02-04T09:41:24.395Z": "unable to delete piece",
"2022-02-04T10:41:27.090Z": "unable to delete piece",
"2022-02-04T11:41:24.431Z": "unable to delete piece",
"2022-02-04T12:41:27.146Z": "unable to delete piece",
"2022-02-04T13:41:26.453Z": "unable to delete piece",
"2022-02-04T14:41:26.456Z": "unable to delete piece",
"2022-02-04T15:41:24.386Z": "unable to delete piece",
"2022-02-04T16:41:24.463Z": "unable to delete piece",
"2022-02-04T17:41:27.072Z": "unable to delete piece",
"2022-02-04T18:41:24.440Z": "unable to delete piece",
"2022-02-04T19:41:24.397Z": "unable to delete piece",
"2022-02-04T20:41:24.426Z": "unable to delete piece",
"2022-02-04T21:41:24.731Z": "unable to delete piece",
"2022-02-04T22:41:24.468Z": "unable to delete piece",
"2022-02-04T23:41:24.429Z": "unable to delete piece",
"2022-02-05T00:41:24.613Z": "unable to delete piece",
"2022-02-05T01:41:27.346Z": "unable to delete piece",
"2022-02-05T02:41:27.165Z": "unable to delete piece",
"2022-02-05T03:41:24.415Z": "unable to delete piece",
"2022-02-05T04:41:27.491Z": "unable to delete piece",
"2022-02-05T05:41:24.403Z": "unable to delete piece",
"2022-02-05T06:41:25.070Z": "unable to delete piece",
"2022-02-05T07:41:27.371Z": "unable to delete piece",
"2022-02-05T08:41:27.471Z": "unable to delete piece",
"2022-02-05T09:41:26.341Z": "unable to delete piece",
"2022-02-05T10:41:27.185Z": "unable to delete piece",
"2022-02-05T11:41:26.141Z": "unable to delete piece",
"2022-02-05T12:41:26.925Z": "unable to delete piece",
"2022-02-05T13:41:26.924Z": "unable to delete piece",
"2022-02-05T14:41:26.749Z": "unable to delete piece",
"2022-02-05T15:41:25.087Z": "unable to delete piece",
"2022-02-05T16:41:24.449Z": "unable to delete piece",
"2022-02-05T17:41:24.972Z": "unable to delete piece",
"2022-02-05T18:41:26.728Z": "unable to delete piece",
"2022-02-05T19:41:25.049Z": "unable to delete piece",
"2022-02-05T20:41:24.455Z": "unable to delete piece",
"2022-02-05T21:41:24.442Z": "unable to delete piece",
"2022-02-05T22:41:24.415Z": "unable to delete piece",
"2022-02-05T23:41:25.026Z": "unable to delete piece",
"2022-02-06T00:41:27.724Z": "unable to delete piece",
"2022-02-06T01:41:25.728Z": "unable to delete piece",
"2022-02-06T02:41:27.394Z": "unable to delete piece",
"2022-02-06T03:41:24.983Z": "unable to delete piece",
"2022-02-06T04:41:26.179Z": "unable to delete piece",
"2022-02-06T05:41:25.034Z": "unable to delete piece",
"2022-02-06T06:41:24.891Z": "unable to delete piece",
"2022-02-06T07:41:25.654Z": "unable to delete piece",
"2022-02-06T08:41:26.984Z": "unable to delete piece",
"2022-02-06T09:41:26.918Z": "unable to delete piece",
"2022-02-06T10:41:27.978Z": "unable to delete piece",
"2022-02-06T11:41:27.760Z": "unable to delete piece",
"2022-02-06T12:41:24.462Z": "unable to delete piece",
"2022-02-06T13:41:27.857Z": "unable to delete piece",
"2022-02-06T14:41:27.344Z": "unable to delete piece",
"2022-02-06T15:41:26.854Z": "unable to delete piece",
"2022-02-06T16:41:24.405Z": "unable to delete piece",
"2022-02-06T17:41:24.529Z": "unable to delete piece",
"2022-02-06T18:41:25.054Z": "unable to delete piece",
"2022-02-06T19:41:26.256Z": "unable to delete piece",
"2022-02-06T20:41:24.601Z": "unable to delete piece",
"2022-02-06T21:41:24.395Z": "unable to delete piece",
"2022-02-06T22:41:24.487Z": "unable to delete piece",
"2022-02-06T23:41:24.398Z": "unable to delete piece",
"2022-02-07T00:41:27.993Z": "unable to delete piece",
"2022-02-07T01:41:26.986Z": "unable to delete piece",
"2022-02-07T02:41:24.440Z": "unable to delete piece",
"2022-02-07T03:41:26.550Z": "unable to delete piece",
"2022-02-07T04:41:26.190Z": "unable to delete piece",
"2022-02-07T05:41:24.503Z": "unable to delete piece",
"2022-02-07T06:41:24.468Z": "unable to delete piece",
"2022-02-07T07:41:29.011Z": "unable to delete piece",
"2022-02-07T08:41:28.992Z": "unable to delete piece",
"2022-02-07T09:41:34.616Z": "unable to delete piece",
"2022-02-07T10:42:25.776Z": "unable to delete piece",
"2022-02-07T11:41:33.046Z": "unable to delete piece",
"2022-02-07T12:49:15.394Z": "unable to delete piece",
"2022-02-07T13:41:54.053Z": "unable to delete piece",
"2022-02-07T14:41:52.540Z": "unable to delete piece",
"2022-02-07T15:41:55.984Z": "unable to delete piece",
"2022-02-07T16:41:32.067Z": "unable to delete piece",
"2022-02-07T17:41:36.515Z": "unable to delete piece",
"2022-02-07T18:41:32.372Z": "unable to delete piece",
"2022-02-07T19:41:33.036Z": "unable to delete piece",
"2022-02-07T20:41:31.889Z": "unable to delete piece",
"2022-02-07T21:41:32.796Z": "unable to delete piece",
"2022-02-07T22:41:34.926Z": "unable to delete piece",
"2022-02-07T23:41:35.881Z": "unable to delete piece",
"2022-02-07T23:47:15.154Z": "unable to delete piece",
"2022-02-08T00:47:14.935Z": "unable to delete piece",
"2022-02-08T01:47:17.798Z": "unable to delete piece",
"2022-02-08T02:47:17.083Z": "unable to delete piece",
"2022-02-08T03:47:23.702Z": "unable to delete piece",
"2022-02-08T04:47:13.361Z": "unable to delete piece",
"2022-02-08T05:47:15.022Z": "unable to delete piece",
"2022-02-08T06:48:22.070Z": "unable to delete piece",
"2022-02-08T07:47:14.444Z": "unable to delete piece",
"2022-02-08T08:47:28.825Z": "unable to delete piece",
"2022-02-08T09:47:22.027Z": "unable to delete piece",
"2022-02-08T10:47:15.326Z": "unable to delete piece",
"2022-02-08T11:47:12.023Z": "unable to delete piece"
}
This seems to be the issue on Github here: https://github.com/storj/storj/issues/4192