multiple-level upgrade dependant abilities

I'm having trouble making custom abilities work properly when I make them require a multiple-level upgrade. I know the upgrades are working because the units that require them are working fine. However, any ability in which I've modified the upgrade level via the Object Editor stays dormant even after the appropriate upgrade has reached the correct level. If I stay away from modifying the required upgrade level, everything works fine even if I modify which upgrade it is. Am I missing something here?

There used to be a related bug wherein setting upgrade level requirements simply didn't work at all. I was under the impression that they had fixed this bug, but never checked it myself. That might be the problem that you're running in to.

If not, for reference, can you give us a specific example of an ability that requires the upgrade, the upgrade that you've modified, the units that use it, etc.?

That sounds like it's probably the problem because I haven't downloaded any upgrade patches. It's not really a problem because I found a way around it using triggers and some special custom upgrades. Anyway, thanks for the reply. I appreciate the information.

To level abilities with upgrades you have to make sure the caster has the upgrade first. The upgrade has to specify which spell to give an ability level bonus. If youve done both and have a trigger to research the upgrade then it should work. Theres a topic here about upgrading unit abilities with upgrades somewhere.

if you are doing maps, you should have the newest patches though, because, when you playing it on bnet with other players, the pachtes apply on it and may screw things up or even make the map unplayable (as 1.10 did)