Any chance you can post step-by-step the install steps you took? There's so many different guides out there but whichever one you used was clearly the best!
I just installed mset and timewarp cia on sysnand like everyone else. Didn't do anything extra and exploit doesn't get removed when launching blue card for some reason.
Also, I installed nvram AFTER the mset downgrade unlike on the gw website's guide. I never touched nvram install before downgrade. Maybe thats the reason but I don't think it is.