Websocket SubscribeTransaction '*' issue

[coval3nte]

NBXplorer fails in subscribing to all cryptos.
the payload is took from the API.md.

payload:

{
  "type": "subscribetransaction",
  "data":{
    "cryptoCode": "*"
  }
}

url: ws://NBXPLORER_URL:NBXPLORER_PORT/v1/cryptos/btc/connect
response: Disconnected (code: 1000, reason: "Disposing NotificationServer")

[ziprotak]

Still actual, getting this

fail: Microsoft.AspNetCore.Server.Kestrel: Connection id "0HN8IFII25BVN", Request id "0HN8IFII25BVN:00000001": An unhandled exception was thrown by the application.
System.InvalidOperationException: StatusCode cannot be set because the response has already started.
at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ThrowResponseAlreadyStartedException(String value)
at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.set_StatusCode(Int32 value)
at Microsoft.AspNetCore.Mvc.ObjectResult.OnFormatting(ActionContext context)
at Microsoft.AspNetCore.Mvc.Infrastructure.ObjectResultExecutor.ExecuteAsyncCore(ActionContext context, ObjectResult result, Type objectType, Object value)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.ResultNext[TFilter,TFilterAsync](State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeAlwaysRunResultFilters()
--- End of stack trace from previous location ---
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|20_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)
at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequests[TContext](IHttpApplication`1 application)

[softkost904]

Looks like notifications for transactions are broken, I'm getting the new block events, but not the new transactions via WebSocket (in nbxplorer log this transactions are present "NBXplorer.Events: BTC: .... hing confirmed transaction ...")