Greg - Can you go to Help > Generate Support Data and PM me the text it copies to your clipboard? I’m trying to find some commonality here among the few people reporting this.
On the system that it fails on, did you happen to have 0.9.12, 0.9.13, or 0.9.14 previously installed? And for that matter did you previously have any of those versions installed on the system that it does run fine on?
For those versions only we moved to a newer version of the framework that LightBurn is built atop but we reverted with the latest release. While the installer is supposed to completely overwrite the framework files there’s a chance that process did not go as planned.
For the system it’s failing to load on right now could you try this:
Uninstall LightBurn using the Windows “Add/Remove Programs” tool
Go to C:\Program Files (x86)\ and ensure there is no remaining LightBurn directory. If there is, delete it.
Do a fresh install of v0.9.15
Also, I notice you are using the 32-bit build. Try the above instructions using that as you have. But if it still doesn’t work, can you run through that process again but use the 64-bit installer instead?
If you have a 64 bit operating system, you should use the 64 bit version - it’s actually faster, and the access to more memory means that it can handle more complex operations.