Extra plays audio only in OpenPHT

i’ve tried this on two PCs running OpenPHT 1.5.2 and one Extra that is an mkv file will only play as an audio file whereas it will play as a video in plex web or locally. Let me know any additional info i could provide or if its a known issue, interestingly it only occurs in one extra file i have similar mkvs as deleted scenes for other films that do not do this so maybe a codec issue?

Verified resolved in OpenPHT 1.6