Since there's now a bug report for this issue, I'll lock this thread here. To anyone else seeing the same problem, please use the bug report:
https://answers.ea.com/t5/Bug-Reports/Platforms-have-a-gap-instead-of-a-ceiling/m-p/12775412#M255001
@gertie47 I've also got gaps above all of my platforms where I can't apply ceiling coverings because as @Pick-a-boo_doo rightly points out there has to actually be a ceiling in place before you can cover it. So I've added images here to show how I've corrected the gaps above the platforms first.
To start with, I've pulled back the roof and then placed fencing around the gaps to fill them in. Then I've removed the fencing and I'm left with a section of concrete instead of a gap. Then I applied ceiling coverage on both sides, upper and lower to match the rest of the house and I've put the roof back over it once it's finished. My images aren't quite as professional looking as I've just quickly snapped them on Android but I hope it makes sense.
@simsplayer818 Hahaha... so funny, as while you were posting I was also testing this in my game. I found the same issue and addressed it much like you did - where there is no roof over the platform, just a hole. (I did the same fix by adding a room above the opening over the platform on the room above, then deleting it's ceiling and walls and leaving the floor, then I was able to paint the ceiling also... because it was no longer missing/an open hole.) @gertie47 I'm sorry, as this is quite annoying. I'm wondering if it's a bug that should be reported. If I find a bug report on it I'll post here so everyone could add their 'Me Too' and 'XP' to the bug report. 🙌
Edit: I did not find a bug report on this one, but I think it would be a good one to make a bug report on. Please note that I personally always avoid butting a platform up against any wall, because if the platform does not have at least one tile in-between it and a wall, I get issues. My guess is that it's not 'technically' considered a room, though you can upload a platform as a room in the gallery/library. So... you cannot add walls to the platform like a room, etc.
@simsplayer818 (Note... I added to my reply note above.) I agree... I like the platform option, but I use it with a measure of trepidation and tons of checking for it's temperamental quirks. Also, if it's leaving off the platforms when you upload to the gallery that is really not good! I would encourage you to put together some details on that and make a bug report! 🙌
