I duplicated a screen with a form and did a little changes.
Today after opening the App to edit that when I click each the screens (original and duplicated), all opened PowerApps tabs stops working and after a while it shows:
Hi @farsami1 ,
Could you show me the error message?
I couldn't see anything about error message in your issue.
I've made a similar test and not met the same problem like your description.
However, when I click the duplicated screen, it will stop working for a few seconds. Then, it will work as normal.
So maybe loading duplicated screen really need some time.
I suggest you update your browser to the latest version, clean the brower's cache and try again.
What's more, please make sure that you are in a good condition of network , which will effect the app's performance too.
If the problem still exists, do you use large data of data source? Do you use many controls?
In this situation, you need to modify your app to improve your app's performance.
Here are some tips about it for your reference：
Thanks for your prompt reply.
There's not any error message the page gets unresponsive.
The form have about 20 labels and controls, and the list is temporary with ~20 records.
to be sure I waited for the form to be opened over the night, nothing.
Now I am working with more complicated one and that's fine.
Also I tried that on Edge and Chrome and the result is the same.
The bigger problem is I tried the previous versions even before duplicating the screen and the result is the same. IT seems I lost all I've done.
Another thing is I can run the App but I cannot edit or view that.
Thank you again,
It seems to be a Bug of PowerApps.
I am experiencing exactly the same issue. I made a "minor" change to one screen a few days ago (Monday), namely setting the value of a Tooltip for a button. That was literally was the only changed I made to the app, a minor bug fix if you like. I did not experience the slighest performance-type issues in making that miniscule change to that one screen in the app. It is not all that complex of an app, consisting of a total of 8 screens, 12 SharePoint List Data Souces and 1 Flow (which isn't really used).
Having made that minor change to the app, I saved it and immediately published. Users have no problem whatsoever navigating to that specific screen now, which in turn renders the information expected. i.e. there are absolutely no performance issues in Runtime mode.
The issue I am experiecing now is that I cannot in PowerApps Studio in design mode navigate to that specific screen anymore, continuously get the same message per this thread, i.e. Page Unresponsive. Every other PowerApps tab "in my web brower-Chrom" that was open equally becomes completely unresponsive.
I am unable to even attempt to copy that screen in the left treeview menu. Once again the app immediate becomes unresponsive along with all the other PowerApps web browser tabs open.
I tried launching the Monitor under the Advanced Tools on the menu. That does open a new browser tab with displaying the typical content one would expect. However, again as soon as I in any way try to interact wigh that screen n the PowerApps Design Studio, even the Monitor tab in web browser session equally becomes unresponsive (no matter how long I wait)
I have attempted to try resolve the issue with every other possible avenues I could think of, including:
I have spent the entire day trying to resolve this and got nowhere.
That's too frustrating.
Yet, I am looking for a solution. But it seems that I have to start from scratch.
The bigger problem is I don't know how that happened to prevent that happening again.
I could not solve the problem by myself.
I contacted Microsoft Support and after passing several tiers, they solved the problem.
They said it is a problem of one of the versions of PowerApps.
I hope it helps.
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