Logic has an additional problem though - Bitwig and Live were behaving, but Logic still glitched as soon as I automated parameters in audiogridder. It wasn't as bad as the hypervisor glitching but it still made it unusable. In Logic's Audio settings page on the General tab there's an option called Sample Accurate Automation. With this set to "Volume, Pan, Sends, Plugin parameters" audiogridder will glitch whenever receiving automation. This problem disappears when choosing "Volume, Pan, Sends" instead.
Logic has an additional problem though - Bitwig and Live were behaving, but Logic still glitched as soon as I automated parameters in audiogridder. It wasn't as bad as the hypervisor glitching but it still made it unusable. In Logic's Audio settings page on the General tab there's an option called Sample Accurate Automation. With this set to "Volume, Pan, Sends, Plugin parameters" audiogridder will glitch whenever receiving automation. This problem disappears when choosing "Volume, Pan, Sends" instead.