[HELP] Vapoursynth job never finishing

[jmp909]

I get the same issue. eg trying to convert 30fps to 60fps with Filtering -> Vapoursynth -> Other -> Frame Interpolation -> Interframe/SVP

The encoding reaches remaining time 0:00:00 but just continues without completing, with the estimate file size going down and down. 

was working fine in the previous version (apart from the Red Border issue)

Video: x264
Audio: Passthrough
x264 profile: High / 4.2
Encoding mode: specific filesize/bitrate (2 pass),  fast 1st pass, bitrate 1500

Vapoursynth: 
Frame Interpolation: Interframe / SVP
FPS: 60