Class: Wizard (Shock Arcanist)
Upon reaching lvl 4 and doing the level up process, all level 1 and 2 spells can be chosen for new spells known, even the once I already know.
No matter what 2 new spells I select, when going to prepare my spells, there are now no non-cantrip spells in my spellbook.
Even upon doing a new long rest, this does not change and my Wizard can now only cast cantrip spells.
Loading and doing the level up process again replicated this bug in 5/5 tries.