Microsoft.AspNetCore.SignalR.Client, IOS device on released build

Hi,
I am using Microsoft.AspNetCore.SignalR.Client 3.0.0 nuget package (also tried the 3.1.1 version).
On android devices works properly on Debug and Released version.
On IOS devices works properly on Debug but not on Released version.
I would like to ask if there are any additional steps that i need to implement in order the IOS device use SignaR realtime connection on released version?
I can't figure it out why on Debug works but not on Released version.
Any help will be appreciated!
Regards.