Unable to share files by selecting from Email

Google Drive Unable to share files by selecting from Email. It will show “Sorry, an internal error has occurred and your request was not completed.” Please provide a solution.

I know you said you were using the attach by drive button in email however that dialogue doesn’t remind me of the one in Gmail so able to share a bit more information about how you were sharing the files? Was the file belonging to you or was it a ‘shared with you’ file or a file inside of a Shared Drive?

Google Drive > My Drive

Thanks for sharing. Are you sharing the file with someone else in the same domain as you or under a different domain or even a different subgroup of your domain?

Sounds like it is only happening with xlsx Sheets but not native Sheets files?