Teaching magic spells through weapons

I just tried it and even if the battle event bit $1DD1 is not set you can lean magic from equipment. You probably set a piece of equipment to learn a magic at a certain rate, gave the Ability points to the correct formation (those two steps can be done in FF3usME), but you forgot to set the correct battle event bit. I beleive you need to actually play the event in which you added the command B8 43. If you just add it prior to where you are actually in the game the bit will not be set.

If you have Novalia spirit event bit document, this is what is stated:

1DD1:3 Enables the display of ability points acquired

So that bit does not enables the learning of magic, it simply enables the display of ability points.

Edit: Here a video showing what I mean: command B8 43