Epic War Age (EWA) - Adapted Mod Collection

I don't quite understand the point of the mentor system. Now it's impossible to forget an entire skill with all its perks. And when revisiting the mentor after forgetting the first perk, the entire turn of the hero and gold are lost. What great purpose did this serve?

EWA is a collection of mods. To fix this issue, it will be necessary to modify someone else's mod, and for that, you need to identify it first. The author of EWA probably doesn't have time to fix this right now, if this problem is indeed from their mod.

As far as I know, the mentor takes away a turn in the TE mod.