If the issue is isolated to Avid, you could try the following troubleshooting steps:
1.Check if there are any updates available for Avid and update the software if necessary.
2.Check if there are any plugins or third-party software installed in Avid that could be causing the issue. You could try disabling any plugins and see if the issue persists.
3.Check if the export settings for the graphic files are correct. Make sure that the export format is compatible with your system and that the export settings are configured correctly.
4.Try exporting the graphic files to a different location on your system or an external hard drive to see if the issue is related to the destination folder.
5.If none of the above troubleshooting steps work, you could try reinstalling Avid to see if it resolves the issue.
I hope this helps! Let me know if you have any further questions or concerns.