Failed to parse JSON description overlay from SoapySDRSource0: invalid UTF8 string

I am using pothosSDR, when soapy SDR source pops up Failed to parse JSON description overlay from SoapySDRSource0: invalid UTF8 string, why? How do you fix it?

You don’t say anywhere what hardware you are using?

Is this still a problem?

Have you tried posting to pothos-users?

How do I release it?