I took a flight with v1.2 yesterday and the callouts were working fine. I had missing callouts in the past, usually because I forgot to turn on the landing lights 😞
The list of conditions was mentioned here:
The requirements for the call-outs to be active are:
Landing lights on
Strobe lights on
Aircraft is on the ground
Throttles are increased past a certain threshold
If you are unable to hear the call-outs despite all of those requirements being met, please submit a support ticket so we can investigate further.