Hello @Kristina34923837g8a3,
We understand that encountering technical issues can be frustrating. Would you mind performing a clean reinstallation of the GPU drivers (Intel / NVIDIA / AMD) and setting the Graphics Preference to High-Performance for Illustrator (https://www.amd.com/en/support/kb/faq/gpu-110) and checking if it helps?
Also, try manually resetting Illustrator's preferences and sharing your observations:
For Windows
- Close all Adobe applications.
- Go to Location C:\Users\%USERPROFILE%\AppData\Roaming\Adobe
- Rename Adobe Illustrator and Adobe Illustrator 28 Settings folders to Adobe Illustrator.old and Adobe Illustrator - 28 Settings.old
- Relaunch Illustrator from Creative Cloud
Disclaimer: Please note that renaming preferences folders will remove all the custom settings, and Illustrator will launch with default settings. You can also save a backup of the folders in case you want to. The location is mentioned above.
Looking forward to hearing from you.
Thanks,
Anubhav