sims actions stuck at top of queue

Product: The Sims 4
Platform:PC
Which language are you playing the game in? English
How often does the bug occur? Often (50% - 99%)
What is your current game version number? SP13:1assets.beta-sp13.89
What expansions, game packs, and stuff packs do you have installed? get together, get to work, city living, seasons, island living, cottage living, get famous, high school years, discover university, laundry day, werewolves, vampires, growing together, dine out, jungle adventure, spa day
Steps: How can we find the bug ourselves? No idea? Just try and play normally
What happens when the bug occurs? nearly every action, I give my sim, gets stuck at the top and the sim just stands there stuck. I have to reset using shift/reset which is becoming very tiresome. Not sure if it's a bug or a mod issue?
What do you expect to see? I expect to form a queue of actions and then my sim performs said actions. I don't expect to have to reset after nearly every action
Have you installed any customization with the game, e.g. Custom Content or Mods? Yes
Did this issue appear after a specific patch or change you made to your system? Neutral/Not Sure 

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Does anyone happen to know if this a bug or a mod issue? I have 4 saves and this only happens on one of the saves so could if still be a mod issue if it's only on one save?

Any help would be gratefully received!