Multiple On-hit: cast spell properties do not work on a single item.

[summonFox]

To Reproduce

• Put multiple On-hit: cast spell properties on an item, such as a weapon for our reproduction.
• Use the weapon to attack a target.
• Only one On-hit: cast spell property will cast.

Specifics

• OS (Windows, Mac, Linux) Windows
• Game build (e.g. 8193.8, or commit hash) 8193.16
• Distro platform (BDC, Steam, GOG) Steam
• Content overrides? (Steam Workshop? Overrides? Patch haks?) No
• Regression? (Build which broke it, if known) No

[vicentebaena]

I'm afraid this is the expected behaviour even in 1.69: https://nwn.fandom.com/wiki/On-hit:_cast_spell