This app used to work great and reliable and a 5 star app. After updating to version 1.0.2 and Firefox 76.0.1 (64-bit), it fails to combine video-only and audio-only, with a popup saying "Batch downloading interrupted" when audio stream download is at completion but video stream is still downloading. If this can be fixed will once again be 5 star rating. Thanks

Yes, this is a duplicate review, saved me the typing. I'm having the exact same problem now.