The load screen going black is because you probably haven't updated a UI related mod. The Sims have no plans on stopping regular Mods or CC from being used as they have clearly stated that players are able to use mods and CC as they have done before. Try managing your mods better when there is an update and you'll find they will actually work and the game will load. If you are going to use mods in your game then you really should learn to wait for all the mods you use to be updated to work with the newest patch version, otherwise you are going to experience issues like the black loading screens. It's not down to EA to make sure your mods are kept updated, it's down to you.