Responses are interrupted for my custom supervisor Agent after 26c.

Summary:

I have customized worker concierge Agent according to my requirement as i have added some of the document tools and also some of the agents into that supervisor agent , it was working fine till 26B release, but today i the system has been updated to 26c and i found that the agent responses got interrupted, sometimes it is giving weird responses like below screenshot

and also sometimes it is getting failed, and after clearing the chat and asking the same question again it is giving the answer, but again for any other question it is populating an error or a weird response.