User are facing the issue during saving data, and fail with same error code as "Microsoft.Xrm.Sdk, Version=8.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]: Operation is not valid due to the current state of the object". All saving action fail and then resolved by itself without any action.
We have check with a KB https://support.microsoft.com/en-us/help/2661403/an-asp-net-request-that-has-lots-of-form-keys-files-or-json-payload-me, but my server is Window server 2012.
Do anyone have resolution for this.
------ Error Detail ---
Unhandled Exception: System.ServiceModel.FaultException`1[[Microsoft.Xrm.Sdk.OrganizationServiceFault, Microsoft.Xrm.Sdk, Version=8.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]: Operation is not valid due to the current state of the object.Detail:
<OrganizationServiceFault xmlns:i="">www.w3.org/.../XMLSchema-instance" xmlns="">schemas.microsoft.com/.../Contracts">
<ActivityId>f16619c8-3efc-420f-9774-fdff15d3ee1b</ActivityId>
<ErrorCode>-2147220891</ErrorCode>
<ErrorDetails xmlns:d2p1="">schemas.datacontract.org/.../System.Collections.Generic">
<KeyValuePairOfstringanyType>
<d2p1:key>OperationStatus</d2p1:key>
<d2p1:value xmlns:d4p1="">www.w3.org/.../XMLSchema" i:type="d4p1:string">0</d2p1:value>
</KeyValuePairOfstringanyType>
<KeyValuePairOfstringanyType>
<d2p1:key>SubErrorCode</d2p1:key>
<d2p1:value xmlns:d4p1="">www.w3.org/.../XMLSchema" i:type="d4p1:string">-2146233088</d2p1:value>
</KeyValuePairOfstringanyType>
</ErrorDetails>
<Message>Operation is not valid due to the current state of the object.</Message>
<Timestamp>2020-12-28T06:34:47.4794557Z</Timestamp>
<ExceptionSource i:nil="true" />
<InnerFault i:nil="true" />
<OriginalException i:nil="true" />
<TraceText>
[Microsoft.Crm.ObjectModel: Microsoft.Crm.ObjectModel.SyncWorkflowExecutionPlugin]
[4229b661-8d24-eb11-8163-005056030f64: ]
Starting sync workflow 'sample....', Id: 3829b661-8d24-eb11-8163-005056030f64
Sync workflow 'sample....' terminated with error 'Operation is not valid due to the current state of the object.'
</TraceText>
</OrganizationServiceFault>
-------------------
Thanks,
