Ideally, there’s a Windows event that mentions LightBurn Halting.
I’ve barely touched Windows 8 so you may need to mess around with it to find the file.
This is a pretty good overview.
A colleague also reached out to offer ‘Use external Load /Save dialogs’
In LightBurn in the top row, click Edit, then click Settings.
One or two rows up from the the Bottom right corner of that box you’ll see an option to select ‘Use external Load /Save dialogs’. Selecting this may get rid of the behavior you observed earlier.