Here is a list of known issues with third party software: Fresco Logic Proxy Display Driver
Problem: Crashes at startup
Cause: It acts as a proxy display driver, but doesn't handle the kind of requests that WPF makes upon the Direct3D 11 runtime.
Solution: Uninstall, or try using --no-hw-ui and WARP renderer (unconfirmed fixes)
https://forum.affinity.serif.com/index.php?/topic/61068-unhandled-exception-error-on-app-launch/&tab=comments#comment-322202   My Endpoint Protector
Problem: Crash when dragging in the Layers panel (reported with version 4.6.7.6 of My Endpoint Protector)
Cause: My Endpoint Protector injects itself into the application and attempts to handle messages on our behalf
Solution: Upgrade to version 4.7.8.3 or stop the My Endpoint Protector software
https://forum.affinity.serif.com/index.php?/topic/48129-instant-crash-on-moving-first-new-layer/#comment-253176   NVIDIA Optimize for Compute Performance
Problem: Document renders incorrectly
Cause: Incompatible with sparse textures (NVIDIA suggests disabling it for applications that use sparse textures, such as Affinity)
Solution: Disable 'Optimize for Compute Performance'
https://forum.affinity.serif.com/index.php?/topic/55424-display-distortion-when-opening-designer-or-photo/   ASUS Sonic / MSI Nahemic
Problem: User Interface elements can disappear or appear stretched
Cause: ASUS Sonic / MSI Nahemic interferes with Direct3D9 renderering
Solution: Start the application with --no-hw-ui flag, or stop the software (this won't affect the driver or functionality of the sound card)
https://forum.affinity.serif.com/index.php?/topic/49247-16089-issues-tabs-vanishing/&do=findComment&comment=249809   RivaTuner
Problem: Instant crash at application start
Cause: RivaTuner hooks into Direct3D libraries and injects it's own code, which causes the crash (neither Serif or Microsoft are at fault)
Solution: 1.6.x.x attempts to catch the corruption, and offers a slower, software-only fallback (with a warning at startup). Alternatively you can tell RivaTuner to ignore the Affinity executables (also add help.exe and crashreport.exe) by adding them to the list and setting 'Application detection level' to 'None'.   FastPictureViewer Codec Pack  Problem: Versions prior to 3.8.0.9 will cause a crash at application start Solution: Install version 3.8.0.9 or later https://forum.affinity.serif.com/index.php?/topic/21449-unhandled-exception-on-launch/ https://forum.affinity.serif.com/index.php?/topic/27758-affinity-photo-system-crash/   Duet Display Problem: Versions prior to 1.4.7.6 will cause no UI to be shown, other than a portion of the welcome window, and the document Solution: Install version 1.4.7.6 or later https://forum.affinity.serif.com/index.php?/topic/28482-big-ui-error-for-photo-and-designer/ https://forum.affinity.serif.com/index.php?/topic/28923-affinity-designer-panels-not-loading/   D3DGear Problem: Crash when creating or opening a document Cause: D3DGear hooks into Direct3D libraries and injects it's own code, which causes the crash (neither Serif or Microsoft are at fault) Solution: Currently no work around other than to uninstall https://forum.affinity.serif.com/index.php?/topic/29144-crash-when-i-create-or-open-a-project/ https://forum.affinity.serif.com/index.php?/topic/21320-unable-to-create-a-new-file-or-open-a-file/   QTranslate Problem: Causes the Mesh Warp and Perspective Tool previews to fail if 'Mouse Mode' (Left click the icon in the tray) is enabled inside QTranslate Solution: Disable 'Mouse Mode' in QTranslate https://forum.affinity.serif.com/index.php?/topic/29884-problems-with-previews/?p=148424