I had already asked in another thread what the problem is that this message comes from and how it can be fixed. Unfortunately I didn’t get an answer, maybe someone can tell me something about it please?
syncing: finishing: checking existing file: file modified but not rescanned; will try again later
Syncthing is scared because the file changed on disk when it shouldn’t have, and postpones acting on it, hoping that it will work better next time. If it doesn’t, we need much more detail to figure out why.