What is the status in this?
I have sent you several log files, and I have downloaded each new version (currently build 40765) to my three Macs, which sync both Google and OneDrive together with two Linux machines. After a few days, syncing files that are updated during normal work, the Mac activity control will show several GB of memory occupied by Insync and will eventually halt the Mac computers when all memory is consumed. So I restart Insync with a few days in between on all three Mac machines and keep it going that way.
I think this has been an issue already since the release of Insync 3. Insync 1 did not have this issue.