Migration to .net 8 : Group call mode with participantcapacity does not support

We have policy recording bot handles Group call / meeting mode with participantcapacity ( ex 100) . after migration policy recoding bot solution to .net 8, we receives Call.ParticipantJoiningHandler event when multipe users join to call / meeting then we send back "AcceptJoinResponse()" but it keep re-sending Call.ParticipantJoiningHandler event mutiple times.
1-1 call or meeting works fine but issue occurs when 3 or subsequent user attempt to join to the call then Unable to join and the user will be dropped from the call after receiving Call.ParticipantJoiningHandler event retries.

Expected behavior
Subsequent user is able to join to the exising call.

Graph SDK (please complete the following information):

• Microsoft.Skype.Bots.Media ( 1.27.0.2-alpha)
• Microsoft.Graph.Communication.Calls.Media ( 1.2.0.10563 )
• Microsoft.Graph.Communications.Call ( 1.2.0.10563 )
• Microsoft.Graph.Communications.Client ( 1.2.0.10563 )
• Microsoft.Graph.Communications.Common ( 1.2.0.10563 )
• Microsoft.Graph.Communications.Core ( 1.2.0.10563 )

Start by reproducing a group call with participantcapacity after the .NET 8 migration, focusing on repeated Call.ParticipantJoiningHandler events and the AcceptJoinResponse response. Done means subsequent participants can join the existing call without retries or being dropped.