Recently on trying to open a cloud flow for editing, within the Power Apps Maker Portal,
the screen appeared blank as shown below.
This was in the Chrome browser, signing out and signing in again also didn’t help.
The same was the case inside the Edge browser.
Interestingly we were able to edit from within the Power Automate Maker Portal, so we continued our work from there.
Finally, the issue was resolved automatically after 6-8 hours or so, and we could edit the cloud from the Power Apps Maker Portal also.
Hope it helps..
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