Latch Math with reduced sample rates

It appears that synchronous channels set with a reduced rate cannot be selected in the Latch Math settings input channel list.

In the screenshots below you can see the global rate set to 20 kHz and three channels set to 20 kHz, 10 kHz and 10 Hz. Only the full rate (20 kHz) channel can be selected in the Latch Math settings.

Are the developers able to allow selection of reduced rate synchronous channels in Latch Math?

Thanks

Matt