Recycle block error

[url-213]

Hello Daniel,
I am working on the project of fluidized catalytic cracker (FCC) unit, but I am facing an error: Infinite loop detected while obtaining flowsheet object calculation order. Please insert recycle blocks where needed. Please help me solve the issue.

Will attach the screenshot.

Thank you

[FrankRBrownIII]

You probably need to add another recycle to the stream between the DCOL-1 and V-3.