Rasa 2.7.0 - handoff supporting 1 session only (URGENT)

Hi,

We are deploying Rasa 2.7.0 using quick install / Kubernetes (since 2.8.0 is buggy). We can open multiple chat sessions with the bot, but only 1 session of handoff (as a result, since communication is lost after handoff, we are using API calls/database queries to communicate with Rasa database). Does it only support 1 simultaneous handoff request only? If yes, is there any solution like in the new versions as 3.0?

The problem is solved by passing Rasa server during handoff, and customizing web widget.