Hi,
Not sure if this will be the same but I saw a similar issue with r81 and it looks like it might be the window size. If I have the window at a size where I can see the word "Actions" the export is available - see the "export_yes.png" image.
If you have your window too small it looks like the export is not available from the menu with the three dots - see the "export_no.png" image.
Have had several other people in the team test this and they get the same results. It's a pretty amazing difference in functionality if it's consistent.
Thanks,
Colin