Problem with 3rd tuner

[lincsat]

I have an Ultimo 4K with 3 tuners, FBC Cable, FBC Satellite and a twin Sat tuner in slot 3 set for 4 Sats via Diseqc. When tuning to anything on that 3rd tuner, I get tune failed.

I've just tried with just the raw image with no settings restore and only configured the tuners, I have tried both the standard 4 Sat Diseqc, advanced and single Sat settings (for the Sat on port A). Using the Sat finder, I get nothing on any transponder. The other tuners work fine and this 3rd tuner is fine with 5.2.001.

I have attached the log, the part that stands out to me is -

<   661.342>   File "/usr/lib/enigma2/python/Plugins/SystemPlugins/Satfinder/plugin.py", line 598, in getCurrentTsidOnid
<   661.342>   File "/usr/lib/enigma2/python/Plugins/SystemPlugins/Satfinder/plugin.py", line 775, in tunerLock
<   661.342> AttributeError: 'SatfinderExtra' object has no attribute 'frontend'

I realise this is an unusual configuration, so may be difficult for anyone else to replicate.

[lincsat]

As an update and after further fiddling, this is related to the configuration of the Sat FBC tuner which is currently connected to a SCR LNB. If I disable the 2nd input and connect 3-8 to the first, then everything seems to work OK. As soon as I enable the 2nd SAT FBC tuner in SCR mode, it stops the standard Sat tuner from working.