Comment 3 for bug 2043560

I experienced the same thing while upgrading from lunar to mantic on 14 November.

In my case, snap-store was tracking latest/stable after the upgrade, and I believe before as well.

A snap refresh of snap-store to latest/stable/ubuntu-23.10 solved the issue for me.

My system happens to be originally a 22.10 install, but it may be the case that I manually changed which channel snap-store was tracking at some point. I'm not sure if the u-r-u is more hesitant to change snap channel tracking if the channel has been manually set by the user.

Additionally, the firmware-updater snap was successfully installed and tracking latest/stable/ubuntu-23.10 after the upgrade -- I did not see the problems with firmware-updater which are tracked in #2036765 and #2039268.