Test Helpers Time module with hardhat mainnet fork

I am writing tests for a time dependent contract with test-helpers from OpenZeppelin. I am testing against the hardhat mainnet fork. When I use any of the time functions like advanceBlock() or increaseTo() I am getting the Error: Invalid JSON RPC response: "". To be precise I am using the await time.latest() line. Any suggestion what could be wrong with this?

Thank you.

Can you ask in Hardhat’s Support Discord? It sounds more like a bug in Hardhat but if it is a bug in Test Helpers let us know.