Manage Worlds and Loading Screens Not Working

@RandomUser0403 Hi have you tried clearing your locally saved data then loading your game? That's by going to Manage Game and Add-ons on Sims 4>Saved Data and clearing the small amount of data next to your gamertag just from your console. Then load up your game immediately and it will tell you it's doing a data synch. Let it do it's thing and it will retrieve your game progress. I attach images for you.

If you are a builder do you have a lot of saved library content? If so that can really slow down your game and cause issues. I keep mine below 10 items in fact right now it's only 1 item. I also clear some households out of Other Households and clear all household inventories before switching households. So if you have previous households with full inventories then it's best to clear those out. It prevents crashing and usually prevents lagging for me too. I also don't keep more than 3 save games.

Gallery downloads can also cause issues on console unfortunately, keep an eye out for any error codes. I can't download from the gallery at all without losing my saved data.

Here's the troubleshooting steps for console too:

https://answers.ea.com/t5/Technical-Issues-Consoles/READ-FIRST-Console-Troubleshooting-Guide-and-Known-Issues-Patch/m-p/12363039#M19682

Hi there! Thank you so much for giving your advice. Just tried clearing the save data and unfortunately no change to the manage worlds issue but the loading time was definitely shorter than previous so it was probably overdue for that lol. 

Regarding the data I have. I only keep 1 save game so its probably not that. I made a second save in an effort to try and solve this issue but no luck so I deleted it. I don't use household inventories as I do not make households and have deleted all of the pre made households on the save I use for building to save space and because sims can be really annoying lmao. I keep one household with one sim who I use as a scale reference/playtest sim.

I do have a fair bit of library content saved (maybe 50ish lots?) but it has never been an issue before and I would be very reluctant to get rid of it especially since that is the sole reason I use the game. In regards to the gallery I typically have no problems with downloading from there the issue I mentioned in my post was when I tried to place a residential lot and the lot placed fine but as I went in to edit the lot, the lot froze and when I then tried to place another build on the lot I got the error message that I cant place rental builds on a non rental lot? So I lost the use of that lot (the one in Tomerang's centre idk the specific name sorry). But that didn't overly bother me as I was able to make another save where the lot worked fine. I don't know if that have something to do with the issue I am facing as I was playing on the same save as the bugged out lot but I was in Newcrest when the issue with manage worlds first occurred.

Idk mate. I've never had issues with lots in the 6 years I've played the sims 4 on console which leads me to believe that it could be the for rent expansion as when I was looking up solutions I saw a lot of people have the same problem with being locked out of lots. I didn't see anyone with my specific issue though. I think my next step is to uninstall for rent and see if anything changes. I shall update if I can find a solution in case anyone else is having a similar problem. 

Thanks again for taking the time to respond. Your help is much appreciated 🙂

UPDATE: The culprit is the "for rent" expansion pack. It's very unfortunate as I do enjoy the pack but something about having it installed (I suspect it may be the new rental lot type) it just breaks the game. I do hope that this issue gets fixed as I have lost a few lots due to the uninstall of the pack. It's frustrating and I recommend that the team look into the pack a bit deeper as I do not appear to be alone in this issue. I'm extremely disheartened by the sims teams lack of care on their new packs as of late.

I would honestly rather wait a few more weeks or months for a pack rather than have it earlier and riddled with issues. We fork out £35 apiece for these packs so I would like them to at least work and not break the game. Overall a very frustrating experience as I've been trying to sort this out all day. Trying to be fair but honestly for the price point the severe lack of care and attention put into the packs marketed feature is incredibly insulting. 

Sorry for becoming ranty towards the end. If anyone else comes across this issue just delete the pack and you'll be fine. 

@RandomUser0403I think it's adding to the size of the game and in particular I'm finding For Rent is generating a lot of new townie households. I'm constantly checking the number of townies in OH and culling over a dozen at a time. They can cause massive issues on console. Mine had almost doubled in size. But I like the pack so far. The patch prior to it's release caused even more issues than the pack itself did for me unfortunately.
But sadly that many library saves is known to cause problems and I keep a backup game save instead of filling the library. I went through it with Microsoft Support who also explained it to me as I started getting an error code. It was with only a few packs the first time it happened. With the whole game except Vampires now it runs better with a minimal library. I'd advise that rather than disabling a pack you've spent so much money on.
For example, with the library I recently tried making a room for each Eco Lifestyle fabricated furniture/decor/dyes/lighting colour so I could keep each one in my library and make instant fabricated homes. By the time I'd created each room in each shade and saved them in the library I had big problems. My library caused my game to lag and freeze up, loading screens were grinding. I cleared it and immediately my game performance improved. (Luckily I still have the items in my retail lots and can do them individually when I want my fab homes). I get an error code saying something about saved data not matching, or words to that effect when using the Library too much. When downloading from the Gallery I get an error code that wipes my saves and stops me making new saves until I wipe my entire game and start again. I upload to it though then at least I know my creations aren't lost entirely.
I firmly believe the library and indeed the Gallery is a problem on console and I hope the stability is looked into at some point because it's a useful resource. I've had these issues on 4 consoles.
Anyway good luck. I hope this does help your game run properly it's such a shame you're missing For Rent. It's a great pack for builders. Keep an eye on this thread:
https://answers.ea.com/t5/Technical-Issues-Consoles/bd-p/the-sims-4-technical-issues-consoles-en

With the rental lot problem you mentioned btw, try going to the lot first from manage worlds and bulldozing it. You might need to evict occupants first if it's not empty. Once it's bulldozed change it's lot type and then start again. That works for me. If it won't let you change the lot type still, you can try the cheat bb.enablefreebuild. If you haven't used that before it's safe to use without disabling Xbox Achievements as it doesn't require testingcheats to be entered first. To open the cheats menu hold down the bumpers and triggers together until the box pops up.

And come back to us with any problems. Always here to help! Good luck.