SureAI

After waking up from the dream/vision after the main story quest part of something (i forgot) part III and talking to Tealor Arantheal and choosing to explore the dialog options you get stuck into a endless loop without being able to exit the dialog and not being able to press escape, i needed to manually exit out Enderal and restarting it, this wouldn't be a problem if the launcher/main menu wasn't so unstable

Welcome to the forum

First of all: did you use any mods or cheats?

Could you otherwise upload a savegame please?
they're found in ...\Documents\My Games\Enderal\Saves, we'll need the skse and the ess of a manual (no quick- or auto-) save
pack them to a rar or zip archive and attach them to a post here

besides one mod that skips the opening boat part no and i hadn't used it on this save, but its unfortunately to late for that as i restarted and decided to not talk to arantheal about anything other than that and continued to play for 2 hours