I posted this in the Bug reports section with no response so I am posting here in the Character sheet issue section. I had this problem a while ago and then, after clearing the cash, I was
able to perform the selections. It is now back. I have a player who has a Warlock level
2 and he wanted to multi-class to Cleric Light Domain on his 3rd level,
XP 900. In Charactermancer, I have recreated his character, from
ground up, and doing CM level up to 2nd lvl Warlock and then at 900 XP, I
Multiclass him to Cleric 1. When we get to the Spells tab, It still
only shows the spells that he has as a warlock and does not show any
cleric spells. I cleared the Cache on both Firefox and Chrome and they
still exhibit the same behavior. Please advise as to what we are doing
wrong. We are using the 5E Character sheet.