A THREAD FOR NEWCOMERS!

Hello! I just registered specifically to ask a question. I hope I chose the right topic :)

I have a complete collection of heroes, and there's a problem: level 5 spells are not displayed in the spellbook. My Wisdom skill is maxed out to the expert level. However, if I choose autobattle, the hero starts using these spells, for example, summoning water elementals. But when I open the spellbook, no matter how much I scroll, there are no spells. At most, there are spells up to level 4 on the elemental pages. Where can I find the spells to use them in combat myself, or is it just a bug, and should I look for a different version of the game?