Pelagija

Hi! Im having a problem opening a specific raw file. I opened the edited lightroom version of the file in affinity photo and then wanted to open the raw version to do all the editing in affinity but it still opens the edited version and it saves it as if I edited the raw file meaning the colors look very different. I dont know why it does that and was wondering if there is any way to see my file in raw form since it opens other raw files without problem. Thanks in advance!