Seadrive failed to synchronise moved files

I’ve just moved 13 small files from one folder to another. Seadrive is failing to synchronise them. The first file in the list was already in the folder. When I look at Seafile on the web, the files are still in the old location but not in the new location.

I’ve just tried resync and now they’ve all got this strange brown icon:

The move fails due to server errors. You can check server logs for any error.

I class this as “solved” as found the underlying reason in this post:

Totally unexpected behaviour when resynchronising Seadrive - Seafile Client - Seafile Community Forum