Yes, that's how it supposed to work.
Sorry, I guess I wasn't clear enough. This is what happens, for example, when using Samba^ at double time:
https://youtu.be/UrtZzSm5JQAAs you can see,
the drums start one bar before than the rest of the band.
I've tested several RD at double time:
-Some of them have the same problem as Samba^ (for example SalsaMambo^ or Rock8ths^), that is:
1 2 1234 / 1 bar Drums / Band
-Some of them play weird countings, for example:
1 2 / Silence / Band (JiveSw^)
-Some of them play as expected:
1 2 1234 / Band (CountryTrain8)