Action que keeps loading up?

Is this only happening with one sim, or many sims? If one sim, try having the sim travel to another lot then back again, and see if that helps.
Clearing the cache files may also help.
https://sims4.crinrict.com/eng/2014/09/delete-cache-files/
Also repairing the game may help.
If the issue remains, and it is affecting all your sims, try testing in a new save game and see if the issue is occurring there.

Ok will try, thank you for the reply!

Hi cassieNC​ 

is there a specific interaction that spams the action queue like that or is it just empty and the bar gets bigger ? There's a known issue with the dance interaction doing this.