I started seeing this when I switched video cards along with running out of memory.
My solution involved setting a 16GB swap file in Windows. Using the custom option, and setting both minimum and maximum to 16384MB. Reboot and voila. No more teleport disconnects.
Other known cause is running a slower drive, like a HDD for your installation. That will also make the teleport fail.
I understand that you see it as the patch’s fault. And I get that. But these suggestions do help.
Good luck. For details on how to set the swap file, go here: