I have lost some tabs and CopyQ won't import them

**Describe the bug**
This morning I noticed that some of the tabs in my CopyQ had vanished. My system (Kubuntu 25.10, CopyQ 13.0.0) shuts down CopyQ every night to trigger a copy on save so I have my saved tabs from the last two nights and if I go to import from either of those recent saves I see the missing tabs but they don't import. Other tabs will import if I select them. As far as I could tell, the tabs and their content were working fine yesterday. I certainly used content from some of those tabs multiple times yesterday.

**To Reproduce**
As above: try to import: import doesn't import the tabs. No visible error message.

**Expected behavior**
Well I would have liked not to have had them disappear, as they have, I would have liked to be able to import them from backups!

**Screenshots**
None necessary?

**Version, OS and Environment**
$ copyq version
CopyQ Clipboard Manager 13.0.0
Qt: 5.15.15
KNotifications: 5.116.0
Compiler: GCC
Arch: x86_64-little_endian-lp64
OS: Ubuntu 25.10

**Additional context**
I can export the current tab collection and supply one or both of those recently saved ones.