So with the updates made to COW after the Hotfixes, I've been experimenting with a team this evening and hit an issue of the Game Softlocking on Turn 6 for me.

Team actions on that turn are LB chaining by Kaito Shift/Mirei Shift/Richt Base/Taivas Base. I have 2 Units doing Focus gen with Taivas and Ashe (mostly a Filler Tank who also fits Royal Arms). Everyone completes their chaining but then the game does not display my Damage tally for the turn and the boss never initiates its turn to proceed.

I know Sinzar posted a clear post-maintenance so trying to figure out what specific factors could be triggering this or if anyone else is running into it (or if any workarounds were found). Sent a ticket to Support as well but won't count on seeing a response before the weekend.