preference / Video Export : you have 4 different way to make an export. some of them are not compatible to use in other video player. so just do a test, until you find the video export which work best for you. the different exports are here to “answer” to the request of people wanting this or that feature. as it was not possible for now to please everybody with one single feature, they did this i think.
you"ll find the explanation and how to make it working for you here explained by the dev himself.
if you still have an issue, then, write to the support as it’s maybe related to something else :
https://community.topazlabs.com/t/temp-files-and-output-files/38853