FunCube Pro+ with Soapy SDRPlay Source block

I have a FunCube Pro+ and am trying to use a Soapy SDRPlay Source block. I have tried quite a few combinations of parameters, but always get "Error setting HW params." I have also tried using a Soapy Custom Source with similar results.

Does anyone have a working flowgraph using a FunCube Pro+ and Soapy?

My system:

Ubuntu 20.04.4

GR 3.10.1.1

Thank you for any help.

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Barry Duggan KV4FV

https://github.com/duggabe