bug: adding voice to an extended video

i’ve tried a few times but when i’ve extended a video to 20 seconds and then tried to add voice to it, it shows ‘generating’ for up towards 6+ minutes and if I refresh it goes away. Console logs shows it finds and selects the voice I wanted but then nothing, a .alert() pops up before I can even put my script into the textbox. Credits don’t seem consumed so i’m not ‘out’ anything but if I cannot get this to work I won’t have a reason to renew next month, this is for product videos.