It should show up without any extra effort required if it is configured correctly and the user has applicable security allowing them to execute the row action.
With all those customizations (are you sure you need them all?) is there a chance you’re in the predicament I’ve previously called out here?
What I have seen catch people out frequently is situation d. where intuition might suggest that the sequence is 4 then 2 then 3 then 1. However that is not the case. A customization in xxx_test base lifecycle trumps a customization in xxx nonbase lifecycle.
If it’s not that, book a slot on my calendar to help troubleshoot.