All my multi-cam choices that have previously been made within a sequence have reverted to only using track 1. So no switches in the multi, it's all the same track source.
You say 'previously'; were the original cuts made in a PPro version prior to 23.6? If you open the same project in PPro 23.5 official release, do the cuts seem correct? What steps shall we follow, to see the same behavior you're describing?