Having problem with items

[Chowo]

Hi ! I wanted to start rom hacking using the pokeemerald decomp and I'm having a problem.
I want to add an item in the overworld, in a pokeball like the classic ones, that gives you items when you interact then disappear. I can get it to give items correctly but it only disappears until the player moves. I set a flag and I verified that it is indeed set and the flag is selected as object flag in porymap is there something I'm missing ?

[UPDATE]: I got back on porymap this morning, the flag had removed itself, so I add it to the object again and now it works.

 

[Lunos]

I set a flag and I verified that it is indeed set and the flag is selected as object flag in porymap is there something I'm missing ?

How did you define the flag that you assigned to your item ball's event object? You might have done it incorrectly.

 

[Chowo]

How did you define the flag that you assigned to your item ball's event object? You might have done it incorrectly.

I renamed one of the unused flags and assigned it in the porymap event editor, is there an extra step I should have done ?

 

[Lunos]

I renamed one of the unused flags and assigned it in the porymap event editor, is there an extra step I should have done ?

No, that should work.
I gave things a quick check, and unsurprisingly everything works normally so I don't really know what to tell you honestly.

Spoiler: