Nick,
I had a go at using the program yesterday. I didn’t have anything setup on my laptop so I installed a WSL development environment.
Running without any options (fcombine outfile infiles) generated an image stacked on the stars with the comet trailed. I then tried the -C option. This resulted in ‘Could not allocate output buffer’ error message. It gave an empty output file. I suspect it is something I haven’t got in my environment or not giving to the program. I ran with the -v option but this didn’t give any more relevant information:
Mid time: 2023-01-27 05:44:08, Span: 1962s, Exposure: 32x60s
Could not allocate output buffer
You mentioned ‘an attached script’ in your last post but I couldn’t see any attachment.