I exported .mp4 and .avi, and I used Windows Media Player and it said that had "unsupported encoding settings".
Viewing post in FluidFrames.RIFE 3.3 - video AI frame generation app comments
Hi,
probably Windows media player does not support high frame rate videos.
You can try with VLC or other programs. Personally i use this https://apps.microsoft.com/store/detail/mpcbe/9PD88QB3BGKN?hl=it-it&gl=it