Hello
I need urgent help with internal error. We can't access app with hundreds of users.
We have 3 apps and one of them opens the wrong edit page - it shows the right app on preview but when I click "Edit app" it displays the interface of another app.
I tried to write to support email but there is no response.
Hiya @Mark_Shcherbakov 
Happy to help out here and to look into this further, could you please send me screenshots/recording of what it is you are seeing on your end?
Do you also run into this issue when accessing in an incognito window?
Could you please also send me the version of your instance? You can find this by clicking on the question mark in the lower right corner.
Hey Mark, we connected via email and I wanted to centralize some possible next steps here so you can work with Evan towards a solution:
If you're able to share the information Evan asked about above, that will help us narrow down the issue. In addition, I wanted to check if the following steps could help work toward resolution:
Can you please check to see if the app is using versioning? Version and release apps | Retool Docs
If so, and you accidentally made some changes to the live working version, could you please try using the ?_historyOffset=5 parameter at the end of your URL? This will allow you to "travel back in time" 5 steps. You can increase the number to go further back in time if you still don't see any app data. The idea here is to go back to the most recent working version so you don't have to redo as much work (going back 1000 steps would likely show data, but it could be many, many changes behind).
WARNING! If you make any changes to the canvas when traveling back in time, that past version will become your present version and it messes with the history, so be careful not to touch anything! Once you find a version that isn't crashing and you'd like to make that your present version, then you can make an edit to the canvas (move a component, add a component, etc) to persist that view.
Please let us know here what you find. Since we are handling your questions here, I may go ahead and close the email thread in the Support channel to make room for other developer questions.
I restored it through the history, thanks. But how it could be possible that the whole app was replaced with another app?
I'm glad you were able to get this sorted out, @Mark_Shcherbakov! It's hard to say what might have caused this, but inspecting the app's edit history might help to narrow it down.
Is it possible that somebody accidentally imported JSON into the incorrect app?
