OmniCC 

Explain last two variables, please?

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Something I don't really understand. (Or do i?)

print(BT4Button5:GetRect()); (roughly)
1291 68 36 36
print(BT4Button5Cooldown:GetRect());
1306 68 36 36

But in reality, the button size is about 30pt. There's no negative padding, only buttons scaled down... Mmm... scaled down. 36*.8 =28.8. Hit. And additional check - even button scaled to 0.6 is still reporting "36".

So, dear, this is a bug. And bug is in OmniCC. You forgot to account for Frame:GetEffectiveScale() of a button. ^_^

buttonWidth:
width of the cooldown model

actionButtonWidth:
width of a stock action button (36)

OmniCC's cooldown text has the same parent as the cooldown model, so it inherits any base scale/opacity settings. though I neglected to include it in the formula I gave you.

Well, then, someone's lying
I can't test directly, what is effective scale of cooldown text, as you're using anonimous frames for it, but the observed behavior is that: The text is drawn without regard of efective button scale (i.e. 36pt all around, even if button is at 0.6 scale, screenshot below, the HS cooldown on the bottom-right)

On related note, there's something in the 4.0.3 patchnotes that make me believe that that "someone" may very well be the *ahem* Blizzard...
The only last enUS realm I've had characters on is now shutting down again, so I was unable to run any additional tests... I'll try to boot ruRU and see if THAT circle of realms living any better, than Cyclone. (Indeed, it isn't... bath time...)
.

First off may I say thank you for whats been a fantastic addon!
I was having an issue very similar to another person who commented, was getting slews of addon errors with OmniCC when I updated it. Then I read up a little and realized that the old version had OmniCC Options, and the new one is OmniCC Config I think both of them loading in tandem is what is causing peoples issues. Either way about it, deleting all the OmniCC folders and then installing the new version worked perfectly.
So I'm just here to share my revelation and once again thanks for your hard work with this great addon

[s]F! Blizzard...
Can't login to servers anymore...[/s]
Yau for clever me! (Backup internet line and a little play with routing ftw!)

It seems I was able to narrow down the right settings combination.
Key item was... a HS in a bag slot
If I scale down the base text size until the "28m" text fit into the slot width, the rest of the configuration begin to behave more or less properly.

Also, I'm not entirely sure, but can you please check one moment? Do you apply text positioning adjustment before or after scaling? It's just like on smaller frames the text looks displaced more, if I'm using position adjustment.

Version 4.0.waffles4 ohhhhhhhhh yea!

Nice work Tuller :P

On a contrary, SBF cooldown text is unbelievable tiny.
I still don't quite understand... It just looks like every other frame using their own dimension system. Surprisingly, they all scale syncronously, when I change UI scale...

The majority of things are parented to UIParent at the end of the day, so they inherit UIScale. I'm betting that the buffs used by that addon are both smaller in overall dimensions, and also smaller in scale.

Funny story...

Wife says to me the other night; "honey, i am getting a error in bugsack. Says something about waffles. You know what it is?"

I lol'ed

Remember me about the old joke TSR called "COOKIE"...

So two things:

First, I am able to be more specific on the OmniCC not showing cooldowns on items inside bags (or at least in Bagnon 2.14.0 anyway). If I have Bagnon open and I put the item on cooldown, the item will not show OmniCC's cooldown count overlay. If I have Bagnon closed, place the item on cooldown, and then open my bag, the cooldown will display.

Second, apparently if I have a modifier macro that casts multiple spells with varying cooldowns, OmniCC will be unable or completely unwilling to display the cooldown count for either of the spells. (I am reading this over and this sounds pretty confusing and I don't know how to word it better so i'll give my specific example).

I have a macro on my mage:

#showtooltip
/cast [nomod] Mirror Image
/cast [mod:shift] Icy Veins

Omni will not display the cooldown for either of the spells. It doesn't matter which one is on cooldown or if both of them are on cooldown. Is there something I can do to fix this?

Cooldown for shadow protection does not show when a Pally has resistance aura on. If i hover over my buffs, shadow protection is applied to me however. When he moves out of range the cooldown does shows up again.

akawidowmaker, keLston:
For the situations listed, do you see cooldown models at all?

Yes, I see them for other stuff normally.

Quite annoying issue, OmniCC display finishing effect when I *gain* buff (Horn of Winter for example)
Environment: Satrina Buff Frames with reversed spiral.