We have noticed after the pandemic hit that we can no longer connect to our RemoteApps portal using the iOS/Mac OS or Android RD Client. We get the error "No workspace is associated with this URL" when we try to connect. This worked previously and worked well. We have a ticket to MS about the issue but haven't gotten very far (opened the ticket April 2nd, still not resolved). Basically doing patch rollbacks on the servers but everyone is guessing at this point. So I thought I would try here.
This wasn't a feature we used very often until the pandemic hit, the employees began working from home. They wanted to start using their tablets and phones to connect to the portal. We used it previously but it was mostly the IT team that used it and it wasn't used very often. We suspect the issue started some time between December, 2019 and March 2020 but didn't noticed until the middle of March.
Here is a link about the client were are trying to use.
https://docs.microsoft.com/en-us/azure/virtual-desktop/virtual-desktop-fall-2019/connect-ios-2019
Attached it a Picture of the error.