Unfortunately, I have to revisit this again. Modal behaviour has been neglected. Modals opened within modals still need a back button or the x must only close the last modal opened, instead of all modals which is the current behavior.
Also, the conditional forms within modals have even less user friendly behaviour. Actions after submitting these forms open up pages within the modal instead of closing it out and opening in the existing tab.
I brought this issue up in the chat six months ago, with no resolution as of yet 