I'm experiencing the same thing.
a) Launch a new battleroom.
b) Add CAI
c) Start game
d) The select commander screen appears as normal
e) A "Ready" button appears -
unexpectedf) Select a commander
g) Choose a start position
h) No countdown -
unexpectedi) Click Ready button
j) Countdown proceeds as normal
k) Game starts, no units are present -
unexpectedNo commander model is rendered. LOS is entirely empty; the whole map is rendered with fog-of-war. Ctrl-A, Ctrl-C, click-drag entire map all produce no selection.
If NullAI is used instead of CAI, everything works normally.
If both CAI and NullAI are added, the above unexpected behavior occurs.