Orleans 7.0 About Memory stream usage help

[wz172]

Dear friends, I am using the example in the project to add the built-in memory stream of Orleans7.0 as Grain's message acceptance. In the test, I found that if a message is not sent for more than half an hour and the stream information is sent later, Grain cannot receive the stream information. I use the display mode to subscribe the stream information.What is the reason for this problem, is there any other related configuration when adding the memory stream?

[wz172]

Here is catching exception information

Orleans.Streams.QueueCacheMissException: Item not found in cache. Requested: [EventSequenceToken: SeqNum=638427006424614893, EventIndex=0], Low: [EventSequenceToken: SeqNum=638427006424623717, EventIndex=0], High: [EventSequenceToken: SeqNum=638427006424631869, EventIndex=0] at Orleans.Providers.Streams.Common.PooledQueueCache.SetCursor(Cursor cursor, StreamSequenceToken sequenceToken) in //src/Orleans.Streaming/Common/PooledCache/PooledQueueCache.cs:line 215 at Orleans.Providers.Streams.Common.PooledQueueCache.TryGetNextMessage(Object cursorObj, IBatchContainer& message) in //src/Orleans.Streaming/Common/PooledCache/PooledQueueCache.cs:line 283 at Orleans.Streams.PersistentStreamPullingAgent.RunConsumerCursor(StreamConsumerData consumerData)

[tchelidze]

experiencing the similar issue, any update on this ?