There were workarounds suggested for the MONO issue - use an earlier version or, instead of 'lossless', re-encoding, so your videos should not have been spoiled.
We all know that it can be frustrating when dealing with email and phone help desks. There is an upgrade discount for licensed users. It's explained here.
Offers do change from time to time, so don't quote me on this, but last checked two current releases could be run unlicensed: trial and free. The trial version may prompt to buy but should be full-featured for a short time. The free one likely has limitations from the outset. If mp4 export isn't available try AVI.
Apparently LaRa, who stumbled upon a different bug now fixed, has received a license extension. You should too. Your name has been submitted; there's no need to write or phone.
