Cannot change ownership of any item in AGOL even with Admin User Role

[Clubdebambos]

We have lost the ability the change ownership of any item in AGOL. 

Using an Administrator user role.

Items are not shared with any group whatsoever so the Shared Update constraint doesn't apply.

Attempted using the Python API and was returned the following...

Unable to reassign item: ***item_id***
(Error Code: 500)

Is there a global setting that is preventing this?

[PeterKnoop · Accepted solution]

I would suggest opening a Support Case with Esri.

This same problem cropped up for us at the end of April (Case #03049177, if you want to reference it.) No one, not even administrators, could change ownership of items via ArcGIS Online, the Python API, nor the REST API. The fix was handled by the operations team, so it sounds like the root of the problem is an issue with the ArcGIS Online backend, which you will need Esri to address for you.

[Clubdebambos]

This was the correct approach. ESRI were able to rectify and we can now change ownership of items. If anyone else experiences this our case number was #03082800.

[Clubdebambos]

Thanks for the info @PeterKnoop we have submitted a Support Case.

[JACooper]

This was also an issue for me. On the advice of this solution, I opened an ESRI support case (#03735411) as well. My issue was two-fold: I couldn't change item ownership, but I also couldn't view the item details page; it perpetually was in a loading state and never finished. ESRI tech support was able to fix the case (with help from cases mentioned here), and I got the following notes: 

We just had to change some of the permissions and statuses of some folders related to the old source user which were causing issues for the reassign. After we corrected the folders and pathways for the item, it could be successfully transferred to your username's account.

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