[MWS] Wedding Event Planner does not work for both sides

Product: The Sims 4
Platform:PC
Which language are you playing the game in? Русский язык
How often does the bug occur? Every time (100%)
What is your current game version number? 1.86.166.1030
What expansions, game packs, and stuff packs do you have installed? All of them
Steps: How can we find the bug ourselves? Plan a wedding for a couple that does not live together in one household
What happens when the bug occurs? Wedding does not exist for the other sim
What do you expect to see? Wedding is properly affecting both sims
Have you installed any customization with the game, e.g. Custom Content or Mods? Not now. I've removed them.
Did this issue appear after a specific patch or change you made to your system? Neutral/Not Sure 

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NOW this is getting truly ridiculous. I have planned a wedding event with one sim for a later day and time. Than switched to her future husband to play with him till the wedding time. Guess what, the wedding wasn't in his calendar and when the time came NOTHING happened.

This wouldn't be an issue of course if selecting guests in the Wedding Event Planner wasn't broken - because there would not bea necessity to switch family in the first place.

Edit By Crinrict: Added Tag to Title, Adjusted Title