Maybe your content has something special since we couldn’t reproduce in our tests.
Can you please share the project and its external data folder (YOUR_PROJECT_FILE_files) if any so we can check. You can upload them somewhere if these are large then send the link to support@atomisystems.com
This isssue was due to the integrated graphics being put under too much load on a 4K screen, forcing the browser to use the dedicated GPU solved the problem.