I was joining a realm and then I cancelled the join and quickly entered a single player world, upon joining I was wearing my gear I have on my realm, the sky was switching between day and night and I was standing in an invisible room to a similar scale of the room I was in on my realm. A quick rejoin fixes most of the problems apart from the time changing rapidly.
In the picture you can see that I am running on wool high up in the air even though I am not standing on anything
Update 1: a second relog fixed the sky bugging
This report is invalid as your game was modified when experiencing this issue. In the attachments you've provided, I can see that you're using modifications and the bug tracker only handles reports that can be reproduced in a vanilla environment. If the problem persists without the use of mods, feel free to create a new report. Additionally, please see the Bug Tracker Guidelines for the minimum standards when submitting a ticket.