Wow, that was fast! Thank you so much for the quick response and fix
looking forward to the next release
I've stumbled on this bug on a current project, but was able to reduce it to the following minimum:
If the Operation in #5 is marked as "rest machining", this is the result:
If the operation in #5 is not marked as "rest machining", it works fine (meaning it produces the model created in the first step)
(Other parameters seemed to not influence the result; I looked at the tool paths in PixelCNC and in my CNC program to ensure this isn't a simulation/rendering issue - the toolpaths would create this result; Using the rendered versions above was the best way to visualise the issue)
Please let me know if more information is required to debug this, or is not reproducible with the steps provided.