Hull KR coach Craig Sandercock was furious with match officials following the 50-30 defeat by Huddersfield.
Sandercock claims he was baffled by decisions from referee Thierry Alibert and his touch judges as Rovers crashed to a sixth Super League loss of the season.
He said: "I'm still scratching my head over some of the decisions.
"If the touch judge can't see a forward pass from five metres away when it was 32-24 to Huddersfield then that's embarrassing for the RFL."
Huddersfield counterpart Paul Anderson believes his team need to be more ruthless in closing out games.
"We went 20-0 up and then got carried away and let them back in it," Anderson said.
"We've got to put teams to bed. And we've got to keep an eye on the points difference. To concede 30 points at home is not good enough.
"We've now shipped nearly 60 points in the last two matches. With where we want to go, that's simply not acceptable."