So I was playing in "realme 3" device or RMX1833 (for device code I guess)

All type of leafs just looks completely solid, no transparency on it, maybe the texture somehow converted from PNG to jpg, or idk, (maybe jpg file doesn't work for Minecraft texture I guess)

But here is a screenshots, 

Ive tried to install Minecraft in my 2nd device, and the leafs looks normal 

Oh yes btw, I'm using keyboard and mouse and plug it to my phone, so it's looks like I'm playing in windows 10 but actually playing in android