There were no Fw 190 D-series in service until October 1944.
I./JG 2 was flying the Fw 190 A and (in the 4. Staffel) the Bf 109 G-6 in February 1944.
There are many RAF reports of "inline-engined" Fw 190s long before such a thing appeared, I guess because pilots had been told in intelligence bulletins to expect them.