A spell suddenly disappeared

[RobertMKD]

I was working on another spell of a building of mine (in triggers), and then after testing, I've found out that one of it's spells is missing, I've checked in object editor, but it's there, I've tried deleting it, and then adding it again, but no result.
I have no triggers that add/remove this ability from the unit, it used to be there before, but now it suddenly started not appearing in-game.

The last time the ability was visible was long ago, and I've may have changed something that could cause this weird issue whole this time, but I've never made a trigger that removes this ability from the unit, do you know what may cause this to happen?

Edit:
I've just found out that I've changed the spells' base ability in 'Channel', and guess what, it wasn't set to 'Visible'

I don't even remember when I've changed that lol.

 

[IcemanBo]

This is solved now?

 

[RobertMKD]

Yep, looks like it is