Multiply Nether portals (Minecraft Mobile)

Hello,
I would like to report a bug that is happening in my game, they happen when creating other worlds too. And they are with the Nether portals

When I create a portal and go to the Nether everything is normal, when I try to return through the portal, I end up creating another one in another location than the original I made.

I will try to put a image of what happened, both are portals that I didn't make but were created automatically after I went back to the OverWorld. One I tried to destroy and put Obsidian in the middle so it wouldn't turn on again, what happened is that another portal was created next to him. My original portal is 200 blocks away from both of them

When I enter my portal 1 (I'll call it that to make it easier to understand) I go to the Nether, when I return through the same portal 1 I appear in portal 2. And vice versa.

I wish I could enter and exit through the same portal and not keep creating more portals in distant locations.

In another world the same thing happened and the Nether portal goes to a ravine, my original portal was 500 blocks away.

P.s. In previous versions the issues was there too... and the screenshots I took was from that