Recon Fw190s at the Eastern Front?

[Schlageter]

However, 1.(H)/31 did indeed operate the FW 190 on the Eastern Front, but only in the final stages of the war. See the primary source reproduced on Holm's site here: http://www.ww2.dk/articles/elfl61.html

I reviewed the loss lists of Luftflotte 6 and noticed that 1.(H)/31 in April 1945 apparently still had Fw189 in its inventory, which seems plausible since the staffel was employed in the the night-reconnaissance role from late 1944 onwards!
Could the listing of Fw190s with 1.(H)/31 at Holm's site/ or in the original Luftflotte 6 document be a typo?

Looking forward to hear your thoughts and opinions on this!

Best

Michael