LRC freezing up

[#1]

Hello my LRC freezing up in the middle of editing and and  it make my Imac restart, I want to reinstall LRC but I dont want to loose my Photos and Presets 😞 any idea 

[#2]

Hello my LRC freezing up in the middle of editing and and  it make my Imac restart, I want to reinstall LRC but I dont want to loose my Photos and Presets 😞 any idea 

[#3]

Please post system info: Help - System Info from the upper left menu items.

Are you getting a lot of fan noise when this happens? What you describe sounds like overheating. Check the vents on the iMac for any blockage. Dust could also built up inside the machine.

[#4]

You don't lose anything when you re-install.

But ... computer freezing and restarting is not something that re-install will fix. The problem is either a bad/corrupted/buggy/out-of-date driver, or a hardware malfunction. Re-install your graphics driver, and run diagnostics on all of your hardware.

[#5]

I am having the same exact issue since yesterday when updated LRC. My Imac freezes and crashes while editing.

I called Apple today, they suggested to reinstall the macOS which I did....Still freezing and crashing, this must be some bad bug from the new Lightroom version. And now my old Lr doesn't run either. Hmmmm

[#6]

Never hurts after a crash to try this fix: reset LR preferences:

https://helpx.adobe.com/lightroom-classic/help/setting-preferences-lightroom.html