Maps are enclosed entities in apps, and that causes all of them to appear black on a screenshot by default. That's just how your device works.

We've invested a lot of time to support:

so these popular maps won't appear black in your bug reports. If your map is black and and you know which map type your app uses — contact us through the Intercom bubble to let us know that you want us to develop support for it too.
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Or even better, join our Slack Community and get in touch with our developers within a few minutes.