The steps outlined below apply to Google Chrome, but similar steps remain true for other browsers.
Start by going into your browser settings
Then search within settings for the words "pop" or "pop-up", and go into Site Settings
Then click Pop-ups and redirects
On this next screen click ADD under sites to be allowed to show pop-ups and add [*.]buildtools.app
That's it, now just refresh your BuildTools page and retry your report or export to PDF. For further questions please reach out to Support