I am doing a beat in Cakewalk Sonar (X1d build 535) and Geist (v 1.0.5 build 5) can't keep up with the meter changes in "Song Mode." The meter changes from 3/4 to 2/4 to 4/4 back to 3/4 quickly and Geist Song Mode can't sync reliably with the measures of the host. Everything is 64 bit.

Has anybody else had this problem?

Geist's song mode isn't really designed to support multiple time signatures. In this particular situation, I would advise against using the song mode, and instead assemble the song in your host.