Using nether portals on overworld when going to the nether causes suffocation. It happens like most of the time. Tested it multiple times.

Steps to Recreate: light any nether portal and use it.

Expected result: The player should be spawned in the center of the portal.

Obtained result: I was spawned underneath the portal, filled with solidblocks. 

I have a screen record of it but I can't put it here because the file size limit is only 10 mb.