Subscription to 4-way 640x360 raw stream appears to be stuck

Description
At present, we subscribed 4 channels 640x360 original stream. During the test, we found that there would be a lag every once in a while. We printed the log in the callback interface and found that there would be no video data for hundreds of milliseconds.

Which Windows Meeting SDK version?
5.10.1.4450

Additional context
Ticket Number: #14759491