We are using the Tellago ESB extension library to read value from context in BRE for a message and then assign required actions to it to resolve the service.
Its working fine most of the time, but everyday we are getting a few failed messages with error:
System.InvalidOperationException: Collection was modified; enumeration operation may not execute.
at Tellago.SOA.ESB.Extensions.Resolvers.Bre.BRE_ResolverProvider.UpdateContextProperties(MessageContextFactRetriever msgCtxt, BRE bre, IPipelineContext pCtxt, IBaseMessage& baseMsg)
Not really sure why is issue is occuring as there is inconsistency in the failure.
Need help to resolve this issue.