PowerApps Canvas Modern Controls Form - Not loading

[LPLPowerAppUser]

Is anyone experiencing an issue with the Canvas Modern control form not loading when they connect to a SharePoint site? If you have any thoughts or suggestions, please let me know. Thank you!

[cdwhite · Accepted solution]

Hi @LPLPowerAppUser ,

I've just connected a SharePoint list to a modern form control & appears to be working ok:

I believe the modern form control is still in preview though, as such not recommended for anything you want to push into Production. 
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[KC]

Not sure if the Modern controls are GA'd yet?

System-Settings-Support!

This morning the recommended version 3.23105.18, stopped surfacing the displayname values of my columns.

Switched to version 3.23113.12, now the form intermittently fails to connect to SharePoint and when it renders, it just blacks out the DataCards. 

[KenSprNC]

I am able to create a Modern Form but when I connect it to certain SharePoint lists it hangs at the 'Please wait ...' popup when generating the Cards.  Creating a Modern Form for a different list worked as expected. However, changing the Form's Datasource back to original list with the 'Replace Cards' option hangs.

As a workaround, I was able to change the Datasource back to the original list as long as I didn't choose the Replace Data Cards option. Manually adding/removing cards worked as expected. I'm guessing the issue is related to number of columns in a SharePoint list or certain types of columns. Note that the classic form works with both lists.

Authoring Version is 3.24021.12 on the GCC SharePoint.com platform.

[asfesrsgadgrehg]

Same thing here, creating a modern form hangs on the loading spinner while trying to generate the cards...

[StacyO]

I'm experiencing the same issue again today...classic form will connect to SharePoint data but modern form won't.  I have had this happen before where I tried to connect a modern form and it would connect so I gave up, came back the next day and suddenly it worked....??? And, I often have situations where I'm working on app, I encounter weird behaviors on the screens or trying to save or add a field, it randomly hangs and won't save the changes - especially if I'm working over a weekend.  Very frustrating!  Are there periods of time I should just avoid working on apps or M365 all together?

I'm running version 3.24022.13.  Modern controls are in the display settings and not part of the Upcoming Features settings (preview or experimental) in this version.  Any suggestions other than sticking with the classic form?