Cannot run App in Edge Web Browser - It will Run in Windows Explorer but not as designed

[TGrounds]

I have a very odd situation -

I have a published PowerApp - 

1. If I choose to run my PowerApp in the Edge Web Browser - by selecting 'PLAY' It tries to load a few times and then shows me the error message 'We tried to load this page for you a few times, but there is still a problem with the site...."
2. If I run it in Internet Explorer, It will run, however, I have 2 Edit forms that provide very odd behavior - one presents the Edit form but doesn't popiulate it with the selected data - the second Edit form just shows blank (it doesn't show the fields).
3. If I select 'Edit' then 'Preview' it will run as expected in both browsers and it runs fine including the 2 Edit forms that didn't load correctly.  Has anyone else experienced this?
4. If I select 'Play' from the Windows 10 desktop PowerApp App, I get the same odd behavior as listed in 2 - the two edit forms don't behave correctly.
5. If I 'Edit in the Windows 10 desktop PowerApp App, and then preview, all forms run as expected.

PowerApp Information:

• 8 Data Sources - all SharePoint Lists
• 4 Screens with Gallary Controls showing filtered and sorted data from 4 of the data sources with links to edit the selected record
• Currently 2 Edit Screens with a Table Control displaying filtered information for the data source being edited and an Edit form with the selected record loaded (or new record in the case of an add).

Anyone else seeing this kind of behavior?  I didn't think I had to check to make sure that 'Preview' and 'Play' run the PowerApp in the same manner.

Thansk- 
Tom.

[Anonymous]

Hi @TGrounds

I noticed a lot of issues with running PowerApps in Internet Explorer (probalby same issues in Edge).

The best solution I found is to use Mozilla Firefox or Chrome for playing the apps. And Chrome for editing the app on web.

I tell all my clients to move away from using IE for my apps since it has some strange behavior and some fields seem to not work.

[TGrounds]

I don't typically use IE but had it installed as a 'second opinion'.  My apps are also intended for mobile and on my two edit forms I'm getting even different results from my original post.

Context:

All of my SharePoint lists are linked to each other via lookup values - for example:

• Apps - I have an App Code and a Description
• Functions - I lookup the App Code from Apps and have a Function Code and Function Description
• Features - I lookup the Function Code from Functions but show App Code as well plus the Feature description

When I add the EditForm to my app and select the Data Source Features, PowerApps builds the fields from the SharePoint list into the Data Cards and builds for me the values in the dropdowns for the lookup fields.  I select the item from the 'Features Gallary control' and select Edit I'm taken to the EditForm to edit that data.  

When I am editing the PowerApp and select preview, all of the fields on the EditForm are populated with their values as expected.

When I run the app on my Mobile device, all fields are loaded on the EditForm EXCEPT the dropdown controls.  They are all blank.  I'm not sure what is going on.

Tom.

[TGrounds]

I had a colleague test the app for me and in her desktop PowerApp client, running the App, she was able to go to the EditForm and see the data minus the values in the dropdowns.  She also was able to go into the EditForm to ADD a new value and she used the dropdown to select a valid item but it never showed as selected.  However, she was able to commit the record to the SharePoint list and it retained the value she selected and create the record.  So, it appears to be a dispaly issue on the combo box?