When I have components on a sandbox that I want to delete I open the ‘delete metadata' dialog and select the ‘Server Only’ option, select the metadata and then click 'Delete’ and nothing happens.
In the above screen shot I select the metadata then click ‘Delete’ and nothing happens - no notification or message or anything. In the log I just get:
2022-04-27 09:04:23,213  INFO - c.m.a.p.o.BuildStatusLookupOperation - Returning results. 2022-04-27 09:06:15,635  INFO - #c.i.i.b.DeleteFromServerAction - Deleting metadata from requested connection jjdev. 2022-04-27 09:06:15,635  WARN - #c.i.i.b.ForceComMetadataDeleter - Nothing to deploy. 2022-04-27 09:06:19,946  INFO - #c.i.i.a.RevealFileAction - Exit code 1