Dashboard: Calculation error for "Disk space used This Month" and "Disk Average Month"?

Node Operators troubleshooting
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This picture from the multinode dashboard, I have 4 nodes on different systems.
1 is Windows GUI, NTFS
2 and 3 are docker versions in Docker desktop for Windows, so NTFS again but via 9P Protocol (network filesystem)
4 is Raspberry Pi 3b+, ext4