I will preface by apologizing for necroposting, but this is the only thread I can find where this question is appropriate. Do these instructions work for PMEX Remix? I tried adding on multiple costumes for ZSS and when I tried to test it, not all of the costumes I had added were available on the character select screen, and when I entered a match to test the ones that did appear, it froze immediately. Then I happened on this thread.
I tried to follow the instructions as closely as possible, but between sc_selcharacter.pac, infor.pac, stgresult.pac, and StockFaceTex.brres, only sc_selcharacter.pac gives me the option to convert to expanded 50-stock system when I right click the stock texture in BrawlCrate.
None of the codes the first post tells me to replace are in the codes on my PMEX Remix build, so i just added them to the text file underneath all the codes that were there. I made sure to turn both of the unknowns under costume count to true, I added the extra costumes textures, both pac and pcs, added the CSPs and BPs for each, (ZSS' BPs are now in a folder called Temp so I added them there, even moved them each so they would be in order by FileIndex) but when I actually test it, it crashes on the Character Select screen.
Hopefully this will help with a solution, and will help others trying to add 50 costumes to Remix. Thanks.
Unfortunately, due to the limitations of the 242 Extension for BrawlEx, 50 CC is incompatible with PMEX REMIX.
However, this was fixed with REX (the successor to PMEX REMIX). Though it's currently unreleased, but is expected to release soon.