Portal bug when going from Theend to Endcity

I have not played for about two weeks, but today I updated the game of MINECRAFT with the main body of Swich, went to the Theend and threw Enderpearl into the portal to go to End City, where the warped place was before Even if you use picks in a place surrounded by stones that cannot be digged in different directions, there is no response to the sky swing, there is no way to get back only to death.
I tried again thought that it was a bug by chance, but the same situation will be repeated.
When I tried it at a later date, the warp destination was darkness, the indication of the remaining air amount flashed when I was in the water, there was no way to wait for the warp sound to repeat many times and die.
With this as it is, the world that has continued as long as it can not be advanced, so as soon as possible please clarify the cause and correct it.