After updating to macOS 15 Sequoia, LightBurn does a couple strange things.
When I quit LightBurn, it closes the window, but the application itself takes 30 seconds to quit.
If I close the LightBurn window, the application shuts down, but again it takes 30 seconds to actually quit.
This happens with 1.6.03 and the latest 1.7.
Hi Claude, Could you share a screenshot of About this Mac so I can compare internally, please?
Sent the email as you suggested. So far, no response to email or on the ‘Support’ forum. 
Crickets! 
Version 1.7.01 also locks up and hangs for 30 seconds when quitting.
Hi Claude
Not forgotten at all - and i got Another user with similar behaviour.
The biggest issue is am not able to replicate at all 
I dont have a M2 or M3 - just M1 so wondering if that might be a variable
After deleting the two Preference files, it works perfectly.
Interesting
Do you think you can recover those and zip and support@lightburnsoftware.com, please?
Zipped and Sent.
Thank you!
For what it’s worth, on my other Mac which I just updated to Sequoia, I didn’t have the problem.
My theory - but not sure i will be able to confirm it - is some particular thing on that pref.ini file makes the slowness.
Maybe a corrupted entry.
Will try to replicate.
