FYI - yesterday we just found out by "stumbling across" it, that it seems to be working (fixed) again without any doing and work on our side or manual updates of our affected apps. Looks like that someone at Microsoft has seen and found out the issue(s) as well and silently fixed it 🤔😅
Edit: Our DSE contact mentioned that the issue was caused maybe by the New Analysis Engine which was set to generally available (GA) on 25th July (the day where we have seen the issues with the app logo images)...
Same issue appearing in all of our apps in all environments since Tuesday morning!
All of our apps are created via our standardized Canvas App template which has in default for each screen the setting for an image control called "imgHeadeLogo_X" inside a header container to use the image by the value of the property "backgroundImageUri" via thePower Apps Maker Connector (Action GetApp)which is stored (alongside all the other properies and details) internal in a record variable called "recAppSettings" but this is not working anymore because the value response for this property is "Blank":
Meanwhile we have implemented a workaround for all our affected apps for the "Visible" property on the image control to check first if the property "backgroundImageUri" has "Blank" value or not to prevent showing an empty image:
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