Logic Pro X Problem: Graphic glitch

Hello people, I have a problem with Logic Pro X 10.4.7 (and the previous version):

Firstly, when I Imported a track, created a new midi track... an aleatory action, small glitch graphics appeared... I tried uninstalling vts and other complements, but the problem was growing.

Finally, I formatted the computer and installed the Logic's latest version (10.4.7), and now, when and I open the DAW and do any action, the graphics glitch appears everyhere. I have included some screenshots so you can see the issue here.

Has anyone experienced the same problem? Any idea how to solve it? I'm desperate, I don't want to change DAW. It doesn't happen to me with any other application, but when I close Logic, glitch graphics appear in the finder. Please help!

Here are my specs:

iMac 2013

OS X masOS Mojave version 10.14.6

Processor: 2,9 GHz Intel Core i5

Memory: 8 GB 1600 MHz DDR3

Graphics: NVIDIA GeForce GT 750M 1 GB