I have the same issue.
Fair warning, the solution I have may be a little janky
My workaround is to create a smart rule instead, and have it sends replicants to a designated folder.
For example, I initially created a Smart Group for things to listen to later (usually in the car, so I need the group available on DTTG).
When I realized that Smart Group didn’t show up on DTTG, I created a new regular group (same name as the Smart Group) and created basically the same rule as I had set up for the Smart Group: When tag is “Listening”, include in Smart Group.
I applied that same logic to a smart rule, but at the end of the rule, I have it create a replicant and send it to the regular folder that I created, since the regular folder DOES show up on DTTG. (See attached file for reference.)
NOTE: I first have to move the file to a holding group. I called the group I moved it to “Listening (To Process).” The reason to do this is that, if the file is in the inbox, it will not create a replicant for some reason. I’ve noticed that I cannot replicate a file IN or TO the inbox at all; it must be in a database first before I can replicate it to any other group. (Again, see attached file). I would rather leave these files in the inbox so I know they need to be processed (i.e. that I can add tags and send them to their final destination within a group later), but this is just part of the jankyness I have accepted lol. To deal with this, I copied the URL to the group and added as a recurring task to my task manager to periodically go into that folder and tag the files + send them their ultimate destinations.
After moving the file to this group, I then have it remove the “Listening” tag and add “Listening (Added)” instead. This way, the rule doesn’t keep finding that original “Listening” tag in in a perpetual loop, but IS tagged with something similar that I can search for / filter by later.
Last, I made sure that the group was set to “Always Download” on my phone so that I can always grab the files as needed on the go.
It solves the issue for me in the interim. Hope that helps.