Great, willowf! Glad to help.
Yes, posting on the issue queues is the way to go. What you saw here doesn't always happen :) stpaultim and I caught an interest in this module since it was so buggy. Some old modules are not so lucky - sometimes maintainers are busy with other things, and there are no one around to fix them. It's sad, but it's the reality of open source. I have to say most "important" modules work fine in the environment.
The Backdrop community is active, and everything and anything new members can do is helpful. Ideally, you'll keep growing your skills when testing so that eventually you can provide PRs to fix things - that's the goal!
Thanks to @argiepiano, we've issued a new release of this module that addresses most of the known issues.
According to @argiepiano, you may need to completely uninstall previous versions of the module before upgrading.
Please, report any new bugs in the issue queue.
https://github.com/backdrop-contrib/userpoints/issues