Looks like you may have an issue with parsing version numbers.
Discussion
This is correct, the current version parsing code is terrible.
Was, I should say, as it's already properly fixed. Available in the next release in a few more days, if all goes well.
Primal and a few other updates affected.
Workarounds: use Obtainium (available on zap.store) or uninstall/ reinstall the app you want to update - make sure you have backups!