I found that Piholos sometimes takes notice if I sacrifice some tech unto him. For better or ill, of course, comes his gaze. Conveniently enough, he seems to prefer obsolete gadgets; pocket calculators, digital watches, betamax, things like that. And don't believe those nutcase Piholecostals, its not necessary to speak in binary.
I re-installed a couple of days ago, since even if I updated, when I rebooted it reverted to 1.31. (using a new card)
So new install was doing the same yesterday, but today is back to normal, i.e. graphs are appearing.
Thanks, I've been away from Discourse for a few days and it looks like no one else has tried to tackle your issue.
Your xq7iwx6kjj token only has 4 lines from the query log. Did you upload the correct log (/var/log/pihole_debug.log)?
Try opening the browser dev tools (F12) and see if there's any errors in the console or network requests.