Showing results for 
Search instead for 
Did you mean: 
Frequent Visitor

Unable to edit Powerapps in web edit



When I try to open my canvas app in firefox I get this grey screen with 'undefined' in the top tab:


Undefined in the tabUndefined in the tab

I am having this issue for 2 weeks now. I am able to create a new app which works but when I close the app I am not able to re-edit again.


I've also tried another browser/incognito and deleted all the cookies considering PowerApps.


Anyone know what this issue is causing?

Super User III
Super User III

Hi @WoLe98,


Try opening the APP with incognito window. Most of the time that will solve your issue.

I hope this resolved your issue if you see any challenge/need further help please let me know I am always happy to do it for my community.

Business Applications MVP
Twitter | Linkedin | YouTube | GitHub
If this post helps you give a and if it solved your issue consider Accept it as the solution to help the other members / new members of the community.
Frequent Visitor

Thank you for your help.


I've tried incognito in Firefox/Chrome but no success..

Also checked my licensing but that seems to be fine


Do you maybe have another idea?

Helper I
Helper I

Did you resolve this? I'm having the same issue. 

I've also tried reverting the app to a previous version, and exporting/importing it as a new app.

Frequent Visitor



After a lot of contact with Microsoft Power Apps Support it was solved.

My SQL Server database had a datatype which was causing this issue with the SQL Server connection in Power Apps.

The datatype was BINARY.


Are you experiencing this issue with a SQL Server connection as well?


Happy to help!

Helpful resources

PA User Group

Welcome to the User Group Public Preview

Check out new user group experience and if you are a leader please create your group

MBAS Attendee Badge

Claim Your Badge & Digital Swag!

Check out how to claim yours today!


Demo Extravaganza is Back!

We are excited to announce that Demo Extravaganza for 2021 has started!

MBAS on Demand

Microsoft Business Applications Summit sessions

On-demand access to all the great content presented by the product teams and community members! #MSBizAppsSummit #CommunityRocks

Power Apps June 2021

June Power Apps Community Call

Don't miss the call this month on June 16th - 8a PDT

Top Solution Authors
Top Kudoed Authors
Users online (15,275)