I'm sorry that happened to you. Does this issue appear after the cutscene when the battle actually starts or does the cutscene simply get stuck before getting to the actual fight?
Okay, I believe I managed to reproduce the bug. Give me some time and I'll try to fix it when I can. Thank you for letting me know and again apologies for the inconvenience.
Actually nevermind. The problem turned out to be easy to fix once you find it. The game has been updated and it should be fine now. Thanks for the help.