full log could be helpful
Here are the SVP Event Logs of me opening a video in VLC expecting it to interpolate to 60 FPS, observing that that's not the case, and then closing VLC.
01:34:08.887 [i]: VideoPlayer: VLC connected, waiting for the video info...
01:34:08.917 [i]: VideoPlayer: VLC disconnected
01:34:09.020 [i]: VideoPlayer: VLC connected, waiting for the video info...
01:34:10.406 [i]: Media: video 688x384 [PAR 1.000] at 25.000 fps [constant]
01:34:10.406 [i]: Media: codec type is AVC, 4:4:4/8 bits
01:34:10.406 [i]: Media: decoded as I444
01:34:10.410 [i]: Playback: starting up...
01:34:10.443 [i]: Playback [ebcb]: resulting video frame 688x384
01:34:10.444 [i]: Playback [ebcb]: 1 acceptible profiles, best is 'Automatic' [0]
01:34:10.451 [i]: Playback [ebcb]: enabled while video is playing
01:34:10.452 [i]: Profile: using automatic profile #1 /film
01:34:10.464 [i]: Playback [ebcb]: playing at 60 [25 *12/5]
01:34:11.157 [E]: VLC: Python exception: invalid syntax (ebcb.py, line 57)\n\nTraceback (most recent call last):\n File \src/cython/vapoursynth.pyx\, line 1943, in vapoursynth.vpy_evaluateScript\n File \/Users/mittu/Library/Application Support/SVP4/scripts/ebcb.py\, line 57\n smooth = smooth.resize.Bicubic(format=vs. 4:4:4)\n ^\nSyntaxError: invalid syntax\n
01:34:11.157 [E]: VLC: script evaluation failed
01:34:17.615 [i]: Playback [0]: disabled while video is playing
01:34:17.623 [i]: Playback [0]: deleted
01:34:17.623 [i]: VideoPlayer: VLC disconnected