Error piercestore protocol: rpc error: code = canceled desc = context canceled

[eha78]

Hi all,
On my side, my 4 nodes are not working anymore since upgrade v0.31.12

2020-01-31T14:52:43.134Z	INFO	piecestore	upload started	{“Piece ID”: “ID546EHNEHGGQ6Z52EBJG5ABNLM7L3M7N27WUETFAP64FZJPG5XQ”, “Satellite ID”: “121RTSDpyNZVcEU84Ticf2L1ntiuUimbWgfATz21tuvgk3vzoA6”, “Action”: “PUT”}
2020-01-31T14:52:43.772Z	INFO	piecestore	upload failed	{“Piece ID”: “ID546EHNEHGGQ6Z52EBJG5ABNLM7L3M7N27WUETFAP64FZJPG5XQ”, “Satellite ID”: “121RTSDpyNZVcEU84Ticf2L1ntiuUimbWgfATz21tuvgk3vzoA6”, …}