@TheBestPessimist posted in GitHub a detailed issue about tmp files:
In the end, it seemed like a google drive problem, but I’m having the same problem with my NAS storage:
/chunks/0e/68565f2d74f7aabf8f630faa7abccb2ff7060054dfce70d54edeaad0d2ac80.scbwyfmu.tmp
The check command reports no errors, all revisions are ok.
By the code I noticed that they are temporary files, but I think these files should be automatically deleted, right?