I have a Blynk app that corrupts the Android app

Yep, it’s correct. We added this ‘id’ field for future tabs dragging functionality on the server, but it is not used in the app yet, that’s why it is 0.

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I am hugely impressed that someone was able to look at this today!
I thought it may be Monday before I may get a dev response and perhaps Saturday.
Much appreciated.

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Good to know. Thank you for your support!

here is what messed up the app:

I tried to clear the image.
I found the line that did it:
Blynk.setProperty(V0,“urls”," "); //clear the track image

Once the image has been set to " " it gets hosed because run time properties persist in the app definition.

Do take care that data coming in for an image URL is never a space!

@wickedbeernut I am impressed that you homed in on that by inspecting the json!

and the fix was:

I placed this in setup()

Blynk.setProperty(V0,"urls","x");

Now that has run, my app and the second tab do not blow up the Android app installation!

One lesson learned:

Grab and store QR codes regularly.

Back in action!