Doesn't sync – Dubsmerge PRO - Merge your Dubsmash videos (no limits) Review

The sound doesn't match the video on the compilation. Each individual video was synced on the Dubsmash app but doesn't match up on this compilation app. Previous videos worked, not sure why they aren't working now. Can this be fixed??
Review by Hkhweaver on Dubsmerge PRO - Merge your Dubsmash videos (no limits).