This bug just occurred for me on PC playing in the EA App, in a brand-new save that was started after receiving patch 1.121 earlier today, Feb. 3, 2026. I normally play with mods, but I remove my saves, tray and mods folders before every update and have not moved them back into my game yet, so this save is completely unmodded.
Whenever I click on my sim's phone to travel, I can only select one or two other sims. Usually it's just one. I've traveled multiple times tonight. One of the times I was actually able to select 2 sims, the UI gave me an error that said "You cannot proceed! Too many Sims are selected!"
My sim is a teen living alone in Evergreen Harbor. She has tried to travel with young adults as well as teens with the same results. I am NOT playing a scenario.
I will be putting this save file out on Google Drive and DMing it to EA_Cade as directed upthread.