I found what seems to be another missing bridge on a tactical map: Scen 01, SW bridge on the surface layer, nearest to the Circus.
I engaged from the SE roaming bandits standing on the bridge at two separate occasions (also retesting by reloading automated save). Tactical map features a missing SW-NE bridge model.
I can't say if it's due to a file corruption, given that I havent fought any other battles on a bridge in this playtest.
This is because the content of the Tundra/Autumn/Shadow Realm terrain from the Decodence mod is missing actually a bridge model. How to fix this is a little difficult to say.