Placing a (regular) torch underwater

[COOKl]

Steam or GOG

Steam

Single Player/Multiplayer

Multi

Operating System

Windows 10

Terraria Version

1.4.1.2

Controls Used

Keyboard/Mouse

This video basically shows it:

It was a Journey Mode world as well. I was unable to replicate the glitch.

 

[Dapling]

I was there invisible (you can see me notice it and levitate over to it for a closer look if you pay close attention to the dusts) and can confirm this happened.