Day of the tentacle nothing clickable after loading save game

[nqaik]

When i load a save game in DOTT, the actual save loads totally fine, but i can't click on nothing anymore in the actual game screen and item list. i can click on the the verbs/actions, but i cannot click on anything else. I can move the character, but nothing else. It feels as if the collision control isn't working. Hovering over items in the game or the inventory is not recognized.

This behaviour didn't occur in ScummVM 2.7.1

I created a new game and saved it, This save file worked for a quick test, but did not much more than play around for couple of minutes then save and reload.

Current version is ScummVM 2.8.1

I tried reverting to an older version, but had no luck.

This is the german DOTT version.

OS: MacOS Sequoia and Sonoma showed the same behaviour.