Nether portal location

We have a few nether portals around our bases and they had been working fine until the recent update. Now when we walk into them, there is a high chance you will be spawned at the overworld location in the nether instead of the location divided by 8. The people I play with have also had this issue on the same game, I host it. When we go back into the portal to come back to the overworld, it is in even more of a totally different place. Just before I walked into a portal that we have at a location near -1,800 64 -28 then in the nether it was the same location but walking back through to the overworld I ended up at around -13,000 64 210 and yes the first value IS minus thirteen thousand.

This happens randomly though