Spoke hole leaks could be the valve but could also be anywhere else too. When the air leaks by the tape the spoke holes or around the valve is where it exits. Sealant may eventually get it but sometimes not. I give it a chance and will retape if not. Additional glue would not help. My method.. clean clean and clean the wheel surface. Apply tape big enough to cover a bit of the side wall of wheel. Put a tire and tube on and pump up to > 50#. Let air out and break one side of the tire bead down and remove tube. Insert tubeless stem and fill with air to seat tire again. Remove valve core and inject sealant. Fill back up, enjoy!!! Seems like a lot of steps but not bad and if everything went well you should have a good tubeless experieincee for the life of that tire. I have one of those window screen rollers and sometimes I'll run that along the corner of the rim wall before putting the tube in. It can't hurt.