Mine works the other way around. I can't disable chunk borders and enchantment glint covers the entire texture (might be the pack I'm using, idk)
It occurs because of the way touch is handled. If you move a cursor with your finger, it properly affects view movement. The finger is basically just the mouse. In versions like 1.13, the bug isn't present. But in the following version, it gets reintroduced.
Hopefully they find out a way to make the cursor like it would be in Java, and disable the cursor when touch is involved, or a way to keep the cursor away from the taskbar.
If you have one, use a controller or a touch screen device with any of your worlds ported over.