I can not see barrier blocks in creative

What I expected to happen was...:

I should normally see red barrier blocks, but they are invisible, I know that this bug is already fixed in 1.15.2 but it's back in the new snapshot

What actually happened was...:

They are invisible and that's not what supposed to happen

Steps to Reproduce:
1. Go in 20w14a and then go in creative mode
2. Get a barrier block and place it down
3. You'll see nothing.. Because it's invisible and that's not supposed to happen