With Catalina, Trouble printing Fedex labels

Welcome back schamt.

Thank you for those details. We’d like you to do some troubleshooting that will assist us in isolating the cause. 

Please try printing the international labels using a different web browser on your Mac. Are you able to print the international labels as expected? 

We recommend starting your Mac in safe mode using the steps here: Start up your Mac in safe mode - Apple Support Are you able to print the international labels in safe mode as expected?

We also recommend creating a new user account on your Mac to see if you are able to print the international labels as expected.

We also recommend updating an drivers and firmware for your printer using the steps here: H P ENVY Photo 7155 All-in-One Printer Software and Driver Downloads | HP® Customer Support

If you still need help, please contact HP here for further assistance: Official HP® Support

Let us know the results. We’re here for you.

Take care.

Hello schamt.

Welcome to Apple Support Communities. We understand that since you’ve upgraded to macOS Catalina that you’re unable to print labels from FedEx. We’re happy to help.

Are the labels you’re trying to print a PDF attachment to an email? If not, are you using a particular app to print the labels? Which app are you using? Please provide the exact error message that you receive?

Please try the steps here: Solve printing problems on Mac - Apple Support

We also recommend checking here for drivers that you may need to update your printer: Printer and scanner drivers for Mac - Apple Support

Let us know the results.

Take care.