RealityCapture stuck on "aborting the process"

I am trying to use RealityCapture to generate a model of my house. Earlier today I decided to cut away some stuff from the outer edges using “Cutting model using box”. Normally this is quite quick, but this time it seemed to get stuck, so I chose to abort it and clicked minimize. I then proceeded to work on the project for maybe 2 hours, until I noticed I couldn’t run Align Images or even Save. After some confusion I found out that the process is still aborting:

RealityCapture is using about 6% CPU (out of 16 cores/32 threads 5950x), which corresponds to about one physical core running at 100%, so something seems to be going on.

I assume its stuck in some sub-routine and will only check for cancellation when it returns from there, but should I hope it to complete (say within 24hr at most), or do I just have to give up and 2 horus of work?