No crash here. I muxed the ASS to mkv with random video/audio (fonts as attachments). MPC-HC x64 1.8.7 + LAV Filters 0.74.1.22 + madVR 0.92.17.
Tested:
- ISR
- XySubFilter 3.2.0.802 (pinterf)
- xy-vsfilter 3.2.0.802 (pinterf)
https://github.com/pinterf/xy-VSFilt.../tag/3.2.0.802