I updated to 5.4.7 beta version now, but now there is another issue.. when chosing SNES or any other Source, the wii freezes. Is this a cIOS issue now instead or?its in the wiiflow lite thread - https://gbatemp.net/threads/wiiflow-lite.422685/page-162#post-9206847
keep 5.4.6 and just replace the boot.dol with 5.4.7 beta version.
for anyone using tetsuo's plugin pack you need v5.4.7 beta or higher because he has more than 128 plugins in his pack and 5.4.6 and below can only handle 128 or less. 5.4.7 allows up to 254 plugins.
this may fix your problem.
EDIT: I removed all caches from previous aswell, still no luck.