Error When Managing Instances

[IceOfWraith]

Bug Report

System Information

• Operating System - Ubuntu 22.04
• AMP version and build date - v2.3.4.3, built 21/07/2022 14:35
• Which AMP release stream you're using - Bleeding

I confirm:

• [x] that I have searched for an existing bug report for this issue.
• [x] that I am using the latest available version of AMP.
• [x] that my operating system is up-to-date.

Symptoms

• What are you trying to do? Manage an instance, tested on Project Zomboid.

• What are you expecting to happen? No errors in the log.

• What is actually happening? ('Nothing' is not an acceptable answer!)

The following error appears in the log each time the instance is managed. No noticeable issue in the GUI though:

[21:07:04] [RemoteAMPAuth:Anonymous Activity] : Authentication attempt for user admin from 127.0.0.1
[21:07:04] [RemoteAMPAuth:Anonymous Activity] : Authentication success
[21:07:05] [APIService:admin Warning] : Returned exception from API call Core/GetAMPUsersSummary
[21:07:05] [Core:admin Error]     : ArgumentNullException
[21:07:05] [Core:admin Error]     : [0] (ArgumentNullException) : Value cannot be null.
Parameter name: source
[21:07:05] [Core:admin Error]     :   at Linq.Enumerable.Select[TSource,TResult] (Collections.Generic.IEnumerable`1[T] source, Func`2[T,TResult] selector) 
  at GSMyAdmin.WebServer.WebMethods.GetAMPUsersSummary () 
  at GSMyAdmin.WebServer.WebAttributes.InvokeMethod (String MethodName, Newtonsoft.Json.Linq.JObject Data, m.Http.IHttpRequest request, ModuleShared.IWebSession Session, ModuleShared.WebMethodsBase MethodsClass, String RawRequest) 
  at GSMyAdmin.WebServer.APIService.InvokeAPI (m.Http.IHttpRequest request, ModuleShared.IWebSession Session, Newtonsoft.Json.Linq.JObject Data, String RequestModule, String RequestMethod, String RawRequest) 

Reproduction

Manage a Project Zomboid instance (Happens on others, but this one for sure).

[PhonicUK]

Fixed in latest CI/Nightly