I stored my oil for the cartridge on it's side......I know I'm just learning this stuff. It won't draw thru my pen 😣 tried someone else's oil so know it's not the pen. Is there anything I can do? About $300 worth

Try putting it in a mason jar and put them in boiling water it should not get hot enough to do damage but may heat it up enough to get the moisture tn it

I've had same issue. I just put mine in a shot glass & set in the window sill on a warm day, mouthpiece down. Checked an hour later & all was good.

Don't know because I don't do the stuff.