Updating to the new 0.63.17 version of NMM, and trying to adjust the load order for FO4, came across an issue, that while Creation Club content is in the load order, the load order is unchangeable. Or so thought everyone. I discovered, that by Exporting to TXT file, I can edit the load order there with a quicker cut and Paste than NMM does with moving a couple items in the load order. Then just import the edited txt file to the new load order configuration even with the CC still in the data folder. You might be able to use a similar technique, to keep your load order up to date with Skyrim. (I've played over 4,000 hours of Skyrim myself.) So if you load up NMM and your load order has changed, just bump import load order from txt file, double check, but make NO changes in the Data list when you start up Skyrim to ensure the list looks the way you want it before launching the game. Edit add: If you have required mod, but disabled, in the load order, they still have to come before what needs them in the list. By clicking ok in the data section for the load order, it auto sends ALL disabled mods to the bottom of the list, and will crash the game, if not right away, after x amount of time. Is best to hit the X or cancel to close that window.