OwlPaste I had this when an automation went a bit wild and ended up resetting Tasmtoa on a bulb (6 power cycles in quick succession). I ended up copying the template from another bulb.
on the tasmota webui in “configure other” you can put the template in
{"NAME":"LocalBytes RGB","GPIO":[0,0,0,0,416,419,0,0,417,420,418,0,0,0],"FLAG":0,"BASE":18}
you could be able to activate it from there too but it should also add it to the list in “configure module”