Problem with RPI3B / RTL-SDR and new satnogs client

Since updating to latest satnogs client I have not had any successful observations - no waterfalls received. Config is r-pi 3B with genuine RTL-SDR. I think I followed all the set-up carefully. I get the support report below - any suggestions appreciated:
------------[ copy here ]------------
{
“versions”: {
“satnogs-client”: “1.3.1”,
“satnogs-client-ansible”: “202004031132”,
“satnogs-flowgraphs”: “1.1.1-1”,
“gr-satnogs”: “2.1.2-1”,
“gr-soapy”: “2.1.2-1”,
“gnuradio”: “3.8.0.0-6”,
“satnogs-config”: “0.10.1”
},
“state”: {
“is-applied”: true,
“pending-tags”: null
},
“system”: {
“distribution”: {
“DESCRIPTION”: “Raspbian GNU/Linux 10 (buster)”,
“RELEASE”: “10”,
“CODENAME”: “buster”,
“ID”: “Raspbian”
},
“pending-updates”: true,
“platform”: {
“system”: “Linux”,
“node”: “satgroundstation”,
“release”: “4.19.97-v7+”,
“version”: “#1294 SMP Thu Jan 30 13:15:58 GMT 2020”,
“machine”: “armv7l”,
“processor”: “”
},
“memory”: {
“total”: 971055104,
“available”: 804249600,
“percent”: 17.2,
“used”: 104890368,
“free”: 593743872,
“active”: 124559360,
“inactive”: 190263296,
“buffers”: 18329600,
“cached”: 254091264,
“shared”: 6500352,
“slab”: 42979328
},
“disk”: {
“total”: 30293102592,
“used”: 3229790208,
“free”: 25785257984,
“percent”: 11.1
}
},
“configuration”: {
“satnogs_antenna”: “RX”,
“satnogs_api_token”: “[redacted]”,
“satnogs_rf_gain”: “38.2”,
“satnogs_rx_samp_rate”: “2.048e6”,
“satnogs_soapy_rx_device”: “driver=rtlsdr”,
“satnogs_station_elev”: “71”,
“satnogs_station_id”: “763”,
“satnogs_station_lat”: “51.6”,
“satnogs_station_lon”: “-1.291”
}
}
------------[ copy end ]-------------

OK - so I see the problem maybe with the issue of gnuradio … needs updating.

Yep - that was it. 3.8.1 solves the problem. I’ll leave it here in case anybody else has same problem.