Dimension Pro x64 crackling with tempo change in X1 Producer

Hi, I'm having a problem with Dimension Pro x64 in Sonar X1 x64: If a patch uses one of Dimension Pro's time-based effects, there are audio glitches during playback at each tempo change. This happens with most of the time-base effects, and most noticeably with the delays. The work-around is to turn off the effect in Dimension Pro and to add a similar effect to the fx bin of the track that receives the synth's audio output. This work-around might not be suitable in all cases, so I'm wondering if there's a known fix. I'm running Windows 7 Ultimate on an i7 920 2.67 GHz processor with 12 GB RAM and a MOTU 828mkII in ASIO mode.