While I agree that the animation while clicking was annoying once we figured out what the issues were it really rarely happened. It usually happened when someone didn't click the spell for attacking with the staff and just clicked on them. Did sometimes happen when the animation of the character moved slightly before clicking.
I usually just made sure to hover over the character for a second or so before clicking to make sure I wouldn't miss.
Equipment Unequipped: Like others have said, this is extremely likely it is from a debuff. If you can barely use equipment with your stats you may want to increase your stats via the stat books or with level ups. Wearing armor with lesser stats until then.
We thought the same thing the first few times it happened and then we realized we were getting debuffed. Debuffs are MUCH more prevalent in tactician mode from the enemy, which is awesome but if you don't know what is going on can be frustrating.
Tactician mode is much less forgiving than the normal game, which is awesome.
