same thing is happening to me on my iphone
this is also happening to me on my iphone. it started today, 1/18/20
I am having this issue also but it is happening when i go from nether to overworld as well as overworld to nether. Please fix its so hard to play the game with this bug.
This is an issue that affects everyone on my realm and we include people playing on pretty much every device including xbox, mobile, switch, and windows 10.