Thanks
Though the 2 games i tried and converted from xci to NSP apparently all was corrupted with just a blank game icon with a loading icon on the titles. Used xci2nsp.
I've used 4NXCI to convert XCIs and I had no luck getting them working either. They either would not install or would come up as corrupted when I tried to launch them. Maybe try nsc_builder, that seems to be working well for people. Or use ZeroTwoXCI to install the xcis directly (converting on the fly)
Also generally enabling installing unsigned code is not a good idea, as there have been malware nsps spread before and that setting is there to protect against such things. Unless you trust the nsp (for example you converted it yourself from an XCI that came up as having valid signatures before conversion, or other people have confirmed it as good) or you are trying to install homebrew nsps that you trust (as those will always fail signature checks) it should be left off, and it should be turned back off when not in use.