Hi @ctruxillo , Before answering the question I would like to help you with below details. You must be knowing already but still for other people who are building this for first time:
While creating a report, you can create a single report or you can create multiple reports within a dashboard. Below is the place from where you create single report or a dashboard:

And this is how, you can make the difference whether it is a dashboard or report:

Also please check the difference between Dashboards and Reports:

Now, regarding the issue that you were facing could be because of browser, so please consider clearing the cache of your browser, and then sign in your PowerApps again, try the Power BI Tile control again, check if the issue is solved.
The Power BI Tile control would need some time to sync the information from the Power BI account (which should be the same account you used to sign in with PowerApps side.
Also if a direct report is created without creating dashboard or within a dashboard, in both the cases the solution that I gave will work for you.
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I hope this helps.
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Thanks,
ANB