RUT955 modem EC25-E firmware for GPS

I have 6 x RUT955’s (H03XXX) which have the Quectel EC25-E modem.
Since firmware 07.05 last year, all of their GPS capabilities have stopped (my other rut955’s are ok (EC25 and EC25-EU in H and T product codes).

The firmware update from server doesn’t suggest a new modem firmware, so I updated them manually to EC25EFAR06A16M4G_20.200.20.200 (using modem_updater.sh) and hey presto - GPS functionality returned.

I found firmware EC25EFAR06A17M4G_20.200.20.200 online and flashed 2 modems with this to test, and they seem fine; GPS ok, data connection ok.

Is firmware EC25EFAR06A17M4G supported for the EC25-E modems? or shall I roll back to EC25EFAR06A16M4G.