Flow Designer visibility failure

[Ricardo Fonseca]

Hello guys.
After upgrading our instance from the Tokyo version to Vancouver, we noticed an impact on the Flow Designer visualization:

In summary, after executing the flow successfully, Servicenow changes the name of the subflow to "payload" (I don't understand where this name comes from, as the subflow has a completely different name) and it is not possible to view its details, the subflow is stuck and the actions that were performed do not appear.

I added 3 evidence that explain the problem.

Thanks a lot for the help,

Best Regards,

[Ricardo Fonseca]

We tried to recompile the subflow as well, and this error message appeared, even referring to this "payload"