Server lag and Pulse Formers

[Danny75]

I am getting a weird lag (private server) where blocks i have just broken reappear a second or so later, and then disappear again. Although my fps isn't affected, everything i do seems to be delayed.

Bearing this in mind...would a pulse former send a pulse when activated, even with the delay....or would this delay somehow nullify the signal. I have them as part of an extensive circuit for a multi-floor elevator.

(I've tested the pulse former with a simple lever and lamp circuit....the lamp does not flash on at all when the pulse former is given a signal at the input. The thing i can't establish is whether the pulse is not getting sent at all or whether the lag is not allowing me to see the lamp flash)