Don't know exactly which tray apps you're talking about,
It doesn't really matter, I've always experienced this from v1 onwards.
I know some apps dynamically update their icons (like the internet connection icon) so a fixed one won't work. I guess that's the way it is and there's nothing to be done.
But for example, apps like MWSnap reset the icon to the default one on each boot. (as I remember that happened on v1 as well)
I have another app on the tray bar called Presonus firestudio project control panel (for my audio interface) and the icon appears blank, totally transparent, not even the default icon for it.
These two apps don't change at all, so I don't see why OD doesn't recall them.
I did what you said, to put these icons on an easily accessible folder to quick find them.
All this is no biggie, I can choose not to use the tray bar at all, but is a shame when you want to use OD as normal window taskbar so you need the tray bar as well, otherwise there's no point.
BTW, the avast icon doesn't shows up either. (perhaps I have to set that on the windows tray icons customization first let me see, EDIT: nop, I enabled the icon and notifications on it and still doesn't show up)
Regarding the icon load, if you've got OD set to start at boot, part of you're problem is that OD is competing with the boot processes for hard disk access. It should load much better if you load OD after boot.
Yes, that could be the reason as well, I think there's a way to make OD to load after the system fully booted. I'll investigate. On the other hand, it still takes a bit to reload once I kill OD just to try things. In fact, all other OD toolbars loads in a snap (even while booting), but this one takes some seconds.
Anyways, in this tabbed bar I described, I have 161 icons (just counted them) organized over several tabs, and probably OD has to look all over to find them, and having an unique folder just for the images could make things faster .....this is just an advice, just a thought. The way I see it is, when you import an app or choose an icon for it, OD will automatically copy the icon to the "imported" or "user icons" folder.
Another thing: Everytime I load OD have this error message
"Debug error!
Program: Program Files(x86)\StardockÓbjectDock.exe
Module: Program Files(x86)\StardockÓbjectDock.exe
File: Run-Time Check Failure #2 - Stack around the variable 'szKey' was corrupted.
Press retry to debug the application" (tried, but didn't help, maybe you need a log from my system?)
I think the toolbar causing this is the one that has the following icons (because is the last one to load after this error message):
C: (system drive)
D: (WD MyBook extrenal drive)
E: (WD MyBook external drive 2)
F: (Mac Partition, using MacDrive)
G: (CD rom)
H: (virtual CD rom from daemontools)
Nagkillah: (just a drivers and installers folder)
Production: (some folder in C)
Commercials: (some other folder in C)
VST plugins: (same thing)
Snaps: (to store snapshots)
All of these icons works fine, no problem at all...and they worked fine in v1 as well.
The network icon has the following link: ::{F02C1A0D-BE21-4350-88B0-7367FC96EF3C} and I tried removing this icon to see if that was the cause, but OD displays the same error upon reload.
Other thing I constantly experience, is OD not retaining the option "reserve edge of the screen" sometimes it just deactivates itself.
One last request....a digital clock?
Thanks and happy new year yipeee!
Mat.