DELETE API testing not working - always empty query strings and body

Product: PowerShell Universal
Version: 5.5.2

I built some POST and PUT API endpoint - working as intended with Body to add or update entries in a config file.
However, the DELETE API seems not to work within the “Test” tab. A test Write-Host of the Body / Query prints empty into the log. Is there any other behavior of PSU regarding DELETE and POST / PUT?

Thanks a lot.

Interestingly, now I only get 401 “Client Error” as response, no matter what I do - even with unauthenticated, although the endpoint requires authentication. And the log files dont show anything… :person_shrugging: