The MCPE Beta 1.9.0.0 messed up textures

Have you tried a full reinstall of the game?

Backup any data you don't want to lose, then try the following:

1. Backup your MinecraftWorlds folder (if you want to save your worlds) (Device storage > games > com.mojang > minecraftWorlds)

2. Uninstall Minecraft

3. Delete the com.mojang folder (Device storage > games > com.mojang)

4. Reinstall Minecraft

5. Run Minecraft and if it works restore your MinecraftWorlds folder

Sometimes a clean install of the game will help with these kind of issues.

You might find the following links helpful:

• How to Back Up Worlds

• How to uninstall and reinstall a game on Windows 10

Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Feedback – 📖 Game Wiki

Sorry for the late reply... but I already tried reinstalling Minecraft, still useless I even tried reinstalling the Microsoft Store just in case, but looks like I'll have to wait for the full release or the next beta update

Edit: Thanks for the help anyways!
Another Edit: The version 1.9.2.0 and 1.9.3.0 is also affected by this bug!

Comigo também. Já fiz de tudo. Vou ter que esperar lançar uma versão nova