After the update from today, I can see some artifacs when switching the modes on characters with large spell lists (Level 11 PC). This is tested with no extensions and doesn't seem to happen in 5E, thus I post here.
1. Create a new character.
2. Give that character some wizard levels (mine has 11)
3. Drag a few dozen spells over and prepare spells for an adventuring day.
4. Cycle through the modes. When cycling from combat to another mode, you can see artifacts of other spells benath the character sheet.
https://i.imgur.com/XT5XmbB.png

