So LayOut 2019 hasn't changed since 2019 so you need to look at what has changed on your computer. Maybe it's a Windows update or maybe a graphics driver update. Go to the website of the graphics card manufacturer and get their latest drivers for your card install them and see if you see a difference.

You wrote that you reinstalled SketchUp and LayOut. Did you use the latest version of 2019 from sketchup.com/download/all? Did you right click on the downloaded installer and choose Run as administrator? If you didn't do that now and if prompted, choose Repair.

BTW, your profile says you are using 2017 Make. Please correct/update your profile.