? tags go to 404

[MeepleMe]

I'm seeing three issues that seem to be related:

Submit 404: When I enter in new redirect and hit Submit, it's successfully created but I'm sent to a 404 error. So, I just have to hit the back button after entering a new redirect. The url displayed on the 404 page looks something like this: https://atlas-games.com/atlas-cms/addons/apps/morrison_redirects/edit/index?id=38&created=1 (note the ?id= appended at the end).

Facebook Ads 404: At the same time, I'm also seeing incoming visitors from Facebook ads are hitting our 404 when we use a redirect link generated by the app. Facebook automatically appends the link we use for an ad with tracking tags following a ?, as well.

Google Analytics 404: Google Analytics tracks similar tags. For example, https://atlas-games.com/dream is managed by the app and works by itself, but it hits a 404 with Google Analytics utm tracking tags added: https://atlas-games.com/dream?utm_campaign=springsale

I verified that setting the redirect up in .htaccess rather than in the redirects app does not have this issue. https://atlas-games.com/infunityks?utm_campaign=springsale is a redirect that works fine, because it's an .htaccess redirect rather than being managed by the app (which I did to make a Facebook ad work).

I also wondered if using wildcards in the app redirect would let the ? tags through, so I set one up as /dream*. It still fails.

Any suggestion on how to work around this? Hitting the back button isn't a big problem, but the Facebook ads likely cost us some sales before I discovered it. Thanks for any help!