A couple of days ago I saw this thread over at Motunation: http://www.motunation.com/forum/viewtopic.php?f=26&t=64450&p=550853#p550853 where a person has/had been having issues with automating the pitch in a plugin. Now the op doesn’t say what exact plugin but the gist of what I get out of the thread is DP has some issues with automation and a couple of workarounds were put forth. Again the exact OSX and DP versions aren’t mentioned.

I have had basic issues with automation in DP 9.02 and 9.51r2 in OSX 10.10.5 as it’s not all that easy to wrap one’s head around unless you use it on a regular basis.