In the picture below, all that we are being made aware of is that both mods are installed. In other words, the conflict is still there, but Nexus Mod Manager does not make you aware of it nor allow you to address it without reinstalling the mods. Once you have made your decision, Nexus Mod Manager will not inform you about the file conflict existing in your load order. To reverse it, you will have to reinstall the two mods and choose differently. While you get to decide at this point whether you want to override the other mod’s files, or not, this is the only time Nexus Mod Manager allows you to make that decision. In Nexus Mod Manager, whenever you install a mod which is editing the same files as another mod, you will be presented with an override prompt upon installation. In most cases your NMM installation will have several file conflicts which you simply are not aware of, whereas Vortex will inform you about the conflicts, and offer the option to resolve them (in different ways) without having to reinstall the mods in question. Nexus Mod Manager and Vortex have different ways of making you aware of file conflicts and enabling you to solve them. I am getting a lot of mod conflicts with Vortex that were not there in Nexus Mod Manager.