rem26_art

If you want to make GRUB remember the last boot entry you picked, you can edit /etc/default/grub and set the following
(make note of the original values or comment out the existing entry by adding # to the start of the line first)

GRUB_SAVEDEFAULT=true
GRUB_DEFAULT=saved

then run sudo update-grub to apply the changes. When you next boot and select a kernel, GRUB will remember that choice and just use it.

Maybe you could try reinstalling the newest kernel? sudo tac /var/log/apt/history.log | less should give you a list of the last updates that were installed. Idk what Ubuntu calls their kernels, but they’d be packages named like “linux-image-generic” or something like that. If that doesn’t work, then maybe they messed something up on that kernel update and you’ve gotta wait for a fix.

Whenever it does get fixed, you may want to undo the changes to /etc/default/grub

when Gandalf said “Fly! You Fools!” This is what he meant