Yes, there were... Way too many. Especially on March 14, 1945. This day eg. the soviet 17th Air Army lost 38 planes (9 Bostons, 20 IL-2s, etc.) alone. Then the 5th Air Army... My book lists them all by crews, serials, engine serials, etc. from soviet records:
http://www.miabonyunk.hu/cikkek/2014...zasu_cikkel_is
("Bostons in the Hungarian sky and soil" - 2013)