Crashing – Video Joiner - Merger to join Review

I downloaded and paid for the premium version of the app after reading reviews of how great it was. I attempted to merge videos and had the app crash on all four tries. It crashed once when trying to add an overlay to one of the videos and three times when hitting the merge button. App just turns off and all progress is lost. Never got it to work. Very frustrating
Review by Veggirl2758 on Video Joiner - Merger to join.