Playing USA against Athena in 1.14f, I can't get amphibious assaults to execute. Have tried four such assaults, and the results are always the same: (1) the troops stay on the ship, (2) the cohesion level of the troops goes down by about 50%, and (3) there is no battle report, no shots fired.
I've always been able to get amphibious assaults to execute under previous versions, so I'm familiar with the correct procedure. (Whether those assaults succeed or not is another story!)
If nobody else has this issue, I won't bother posting a saved game. Will chalk it up to a corrupt install.