I have my songs so that Control D moves the song forward by one measure and Control W back (forwarD/reWind)--just always have and been doing it for years. On a recent song it was really sluggish and I couldn't figure out why. Tried bypassing plug-ins, etc. Finally figured it out-so simple. maybe obvious for someone but took me awhile.

Num lock?
Too much coffee?

Too many MIDI events bunched up together - hardware synth could not react in time.....

great suggestions-but that's not it. Keep trying everyone. 

your personal sense of time is badly skewed ?

LaszloZoltan
your personal sense of time is badly skewed ?

if you want I can send you one of my mixes and you can decide for your self.

it would be interesting to see if it has ever happened to anyone else.  I will wait for people in the States to wake up first and see if it has ever happened to anyone else.

Im confused, is this a guessing game or are you asking for help ?

I'm up in Colorado now. This has happened to me but I forget what it was so:
 
Too high of asio buffers? or WDM slider too for to the right?

chuckebaby
Im confused, is this a guessing game or are you asking for help ?

I'm sorry,I should have never started the thread the way it did. I had a feeling it was stupid and it has been confirmed.  I couldn't fit what I wanted to say in the title area, and yes, stupid to make a guessing game out of it. I am also realizing that maybe some people don't have a hotkey to go one measure forward and one back like I think is very important to my workflow. What happened was on this particular song, the last time I worked on it I had a part looped about 100 measures in (TMI)--meaning when I opened up the project again, I navigated to the beginning of the song as was wondering why it kept skipping forward unsmoothly (new word-I'm tired)  when I tried to go one measure at a time.  like stuttering.  I would have never thought that would happen, found it so surprising.When I took loop of it was happy again to go one measure forward or backward. Sorry to make a game out it. Sorry if I pissed anybody off. My apologies. People waiting to eat dinner-11:00 pm.