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PowerApps Not Loading Apps - Cannot read properties of undefined (reading 'substring')?

Hi there,


I am having issues today getting into PowerApps and I am unable to sign in. Everytime I try to edit an app via the PowerApps Microsoft app and on the browser and both do the same.


I am getting this error:


Not sure exactly where to post this but does anybody have a solution as I need this for work 🙂

Super User
Super User

Try cleaning your cache and your cookies.

Try a different browser to


If you need additional help please tag me in your reply and please like my reply.
If my reply provided you with a solution, pleased mark it as a solution ✔️!

Best regards,

Gonçalo Nogueira

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