Locust Swarm missile type units are invis until they attack

[bi_a_op]

I've been trying to add some missile models as unit for Locust Swarm. But their models are invisible, until they have something to attack, then they'll remain visible for the duration.
The models I've tried, Priest, Sorceress and Keeper of the Grove missiles. Those are the tiny light-birds missiles.

Are these units spawned in a certain state that won't render?

 

[Duckfarter]

My guess is it plays the walk animation, which doesnt exist on the sorceress missile, when the locust unit spawns or it gets stuck on the birth animation, which is invisible. This is fixable by editing the models animations. If you dont want to do that an alternative is to use the event Unit enters playable map area and play an existing visible animation.

 

[bi_a_op]

Thank you. I suspected as much.
I've never done that before. Is Magos a good place to start?

War3 Model Editor

//MOD EDIT// - PLEASE CHECK "UPDATE 2" below before posting if you have ISSUES USING MAGOS This Model Editor is not made by me, but is made by Magos. War3 Model Editor is as the name suggests a Model Viewer and a Model Editor dedicated to Warcraft 3. It supports both loading and saving of .mdl...

www.hiveworkshop.com

 

[bi_a_op]

That did it. Thanks!

For anyone having the same issue. Some missiles don't have a "Walk" animation at all. Locust Swarm seems to spawn the units in "Walk" by default. I created a "Walk" animation in the model with the same values as "Stand".
Saved as "filename.mdx". You need to put the file extension in manually on save (.mdx or .mdl)

EDIT: I don't think this explanation is all true. \Spells\Undead\DarkSummoning\DarkSummonMissile.mdl does not have a "Walk" and this spawns fine in "Birth" as a Locust Swarm unit. However "Birth" is looped over and over constantly, which looks really bad. But after DarkSummonMissile.mdl attacks once, it appears to go into "Stand". Sorceress missile does have a "Birth", but it's just an empty model. That would explain why the Locust units were invisible.