[HELP] .265 file not created while attempting to interpolate to 60fps

[vf2ss]

[attachment=723]

• What Hybrid version did you use? (Windows/Mac/Linux 32/64bit + versions number) Windows 10-64bit Hybrid version 2019.06.09.2
  
  
• What did happen? If an error message came up what did it exactly say? -> should be there after processing: C:\Users\TEMP\AppData\Local\Temp\19_00_48_6110_08.265
  starting 19_00_48_6110_05_video@19:06:02.806 - D:\Video\XMen\XMen 60fps.mkv
  finished after 00:00:01.453
  -> 19_00_48_6110_05_video crashed: ERROR: C:\Users\TEMP\AppData\Local\Temp\19_00_48_6110_08.265 was not created!
  Aborting '19_00_48_6110_05_video' due to: ERROR: C:\Users\TEMP\AppData\Local\Temp\19_00_48_6110_08.265 was not created!
  
  
• What did you do to get to the bug? (best thing is a detailed step-by-step guide so that I can reproduce the problem) Attempted to interpolate a movie to 60fps using FrameRateConverter (x265 processing, passthrough all audio, extract and add all subtitles, x265>Base - Encoding mode: constant rate factor (1-pass), Constant rate factor 18.00,  Filtering>Avisynth>Frame - FPS adjust: FrameRateConverter, Frame rate 60/1, Preset slower, DCT slow, DCTRe slow, Stripes blend, all other settings left on default
  

I've been able to encode this file using Vapoursynth, but found FrameRateConverter produced better results. Also, I've encoding using these settings but may have been using x264. Appreciate any help, and thanks for the tool, it's pretty amazing.