Sends bug

Last times I noticed wired thing: sends suddenly stop sends a sound to FX channel. For example I write automation in previous scene for sending signal to FX channel and everything was fine but on next scene I am turning on send, increase sending level and nothing happens on FX input. Sometimes it happens even if I turn on the send in first time and usually it goes with 1-st send. If just turn on send to the same FX channel on a different send (for example 2-nd) it works properly.

No one has this problem?

Ive never seen this behaviour.

Hmmm… strange. I wasted a lot of time facing this problem. May be that was a problem on the certain machine. But I can not understand why.