Ill take a look of the log next time I see it happining. I had it default, as first one.
[14/08/2014 21:36:34.614] Equipping Marauder's Treads - Condition: Default - Reason : Marked as Default Gear
[14/08/2014 21:36:34.689] Equipping Hypnosis Prowess - Condition: Default - Reason : Marked as Default Gear
[14/08/2014 21:36:34.715] Equipping Bombadier's Rucksack - Condition: Default - Reason : Marked as Default Gear
[14/08/2014 21:36:34.739] Equipping Hellrack - Condition: Default - Reason : Marked as Default Gear
[14/08/2014 21:38:24.119] Equipping Illusory Boots - Condition: CombatDisabled
[14/08/2014 21:38:24.145] Attempt to equip Danetta's Set - Condition: CombatDisabled
[14/08/2014 21:38:41.787] Disabling avoidance (Fire)
[14/08/2014 21:38:41.907] Equipping The Star of Azkaranth - Condition: Fire
[14/08/2014 21:38:42.280] Equipping Marauder's Treads - Condition : CombatDisabled - Reason : Condition no longer valid (Flag : True)
[14/08/2014 21:38:42.354] Equipping Hellrack - Condition : CombatDisabled - Reason : Condition no longer valid (Flag : True)
[14/08/2014 21:38:49.983] Equipping Bombadier's Rucksack - Condition : CombatDisabled - Reason : Condition no longer valid (Flag : True)
Yet it still didnt have Rucksack equipped. It worked many hours again but just now when I desided to see whats going on it happened again. Rucksack was on bags and cause of it still being in bag and quiver slot empty other Vandetta weapon was out of protected space. As we can see it worked time being 21:36:34 Rucksack came first and on 21:38:42 Hellrack for some reason that I dont understand was first.
EDIT: Just realized that there was 7 second between last Hellrack and Rucksack. I dont get whats going on.

Hopefully smarter will explain what im doing wrong.