The UI texture changes from Java were supposed to be fixed on Bedrock, however, the texture change didn't happen in-game since it was changed on the different files where it doesn't appear in-game, causing it to not properly fixed.

Details:
For the potion icon, the texture was updated in textures/gui/spritesheet2, where it should've been updated on textures/ui/bottle_empty.

While for the lapis lazuli icon, the texture was updated in textures/gui/enchanting_table, where it should've been updated on textures/ui/lapis_image (for Classic UI) and textures/ui/lapis (for Pocket UI).