Two different models of graphics cards display different screens

Please let me know. I have a question.

I have two GTX 760s and a GTX 1060.
They are being used to decode h.264 using CUDA.
They recieve the exact same packets.

I was using these well, but I suddenly found a strange thing.
When some h.264 stream packets are lost, two computers with GTX 760 installed display paused image on each two screens. It’s okay.
but, the other computer with GTX 1060 installed displays more cracked paused image on a screen.

Two different models of graphics cards display different screens. Is it normal? or somethings wrong?