Unable to encode due to lack of "Frame Rate info node"

[Eamon]

Are using Avisynth+ 32bit, right? If your script used 64bit filters this will not work with Hybrid.

They are 32-bit filters. I've actually used this script and the filters before with Hybrid before and it worked fine - though the last time was maybe 2017 or 2018.
This is the first time this year I'm using it again. There are practically no changes to it apart from video/sub filenames. I installed the latest version of Hybrid before doing this today.

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I followed all the instructions in your post above. After sending the job the queue and starting it, it crashes after a couple of percent of encoding the video. I tried encoding without subtitle stream, and it works flawlessly. So the issue is related to the subtitle file?

In the log, I got these exitcodes. Not sure if it's useful: -1073741819 & -1073741819

Thanks for the help.