Bug? ZoomImageView and GestureDetector Squash Image When Zooming In

Greetings to all.
I've experienced a strange ZoomImageView and GestureDetector behavior, which I am not sure of if it is a bug or it is just the way it is. When I try to repeatedly zoom in and out and then do it with one finger fixed and only the other one is moving up or down, the image is slowly squashed and loses it's original aspect ratio. I'm currently developing an app which relies heavily on correct aspect ratio. I'm using the examples that came with both libraries and tried them with B4A version 8.5 and 10.2. Thanks for any help.

Combining ZoomImageView with GestureDetector is likely to cause problems. Why is GestureDetector needed?

Actually, I tried the libraries separately. I used GestureDetector first when I noticed the strange effect. After hours of tweaking my code to no avail, I switched to ZoomImageView. Then I noticed later it has the same problem. By the way, I did not change anything in the example project that came with ZoomImageView.

I'm unable to reproduce it with the ZoomImageView example. The image moves a bit but it doesn't change the original ratio.

Ok, I'll try to use another device later. I'm currently using a Samsung A20S mobile phone.