Game Loading is in Progress

Product: The Sims 4
Platform:Mac
Which language are you playing the game in? English
How often does the bug occur? Every time (100%)
What is your current game version number? 1.71.86.1220
What expansions, game packs, and stuff packs do you have installed? Discover University, Get To Work
Steps: How can we find the bug ourselves? Playing your game and trying to go into build mode, gallery or save game.
What happens when the bug occurs? l cannot save my game, travel, go into build mode, can’t go into the gallery while playing the game.
What do you expect to see? l try to go into build mode to load a house and it says “game loading is in progress”.
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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Can someone please help me resolve this issue, l really just want to play my game.

Edit By Crinrict: added current version number instead of product key