The bug appears when I try to apply the addon "the epic knights" in my minecraft bedrock, that is, just import the addon, apply it in a world and enter the world that the bug happens.
The bug consists of all base game non-blocks and all addon items turning black in inventory. Only the icons in the inventory turn black, they in your hand, dropped or in frames manifest normally.
I already talked to the creator of the addon, he said that he already tried to solve this bug several times, but the bug always persisted for some people.
I've tried to solve the problem several times: I've already reinstalled the addon, reinstalled minecraft, cleared my device's cache, restarted my phone, but nothing worked.