You can not switch spells by clicking on a different one; you have to cancel first.
What spells? I checked several in a new game and could not cast them under the skill bar.
And why do i need to cancel first ?? what did you think WHY i click on another spell hm.. ??
Funny, you can't switch the spell by clicking a new one but you can drink potions...
I uploaded a little video to youtube. Casting different spells while in and out combat.
Gameversion is 1.0.252.0
https://www.youtube.com/watch?v=OuuC_vAMRiANow, please, tell me, what is fixed here ?
btw you see the bug with the potion in the video ?
the first click with the firecast casted the spell
the next try with the poison spell, spell canceled and character drinks the potion... it's a feature not a bug isn't it

Next video is about the buffs/debuffs
https://www.youtube.com/watch?v=uJurJwxYO8YPlease tell my how to get the info from "Unterkuehlt" from the Spiderqueen...
(btw.. really.. no utf website.. umlauts not working on this forum.. hell...