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@BrianTU can you provide a copy of the files you mentioned please, the link doesn't seems to be working anymore
And also for everyone else, I've managed to solve the door collision issue in SP, you just simply need to search "sc1_13_0.ybn" with OpenIV and replace both files ("hi@sc1_13_2.ybn" and "sc1_13_0.ybn") in the rest of the folders shown with the ones contained in dlc>x64>levels>gta5>igro45_ron_davis.rpf, as far as I am aware patchday2ng and x64k both contain the same collision mapping and so they interfere since the game decides to use them instead. It worked for me and I am using the latest version of the game in case you wonder