Messages dissappearing from Mailspring

Hi,

i have the following problem with Mailspring: i had it 2 times now, that all my messages left in inbox have disappeared completely from Mailspring (while they still remain available normally in the webmail).

The problem was both times caused by holidays and thus not syncing the inbox for a while. When i came back all messages disappeared. I saw in the logs entries like

“Unlinking messages WHERE remoteFolderId = ? AND remoteUID < ? no longer present in remote range.”
— 4 matches.
— Unlinking “[MESSAGETITLE]” ([UUID])

Before those entries i get these sync logs:

831 [2023-05-05 09:01:17.768] [background] [info] Syncing folder list…
831 [2023-05-05 09:01:18.070] [background] [info] Syncing folder list…
831 [2023-05-05 09:01:18.126] [background] [info] syncFolderChangesViaCondstore - INBOX: modseq 23745 to 24162, uidnext 13871 to 14065
831 [2023-05-05 09:01:18.186] [background] [info] syncFolderChangesViaCondstore - Changes since HMODSEQ 23745: 5 changed, 14006 vanished
831 [2023-05-05 09:01:18.238] [background] [info] - Building queries for range 1-5804
831 [2023-05-05 09:01:18.238] [background] [info] - Building queries for range […]

for all the messages disappearing. However these messages remain normally in the inbox of the mailserver. Any ideas?