Bukkit

What version of MC is your server running?
1.8.8 / vanilla

What version of Java is your server running?
1.80_51 (64 bit)

What version of Knapsacks are you encountering issues with?
1.0.28 (MC:Bukkit/Spigot_1.8.x)

What issue are your having?
I added a filled knapsack to an item frame accidentally, I think struck it with a sword to get it back and got a warning that it was to withered to pickup but then it disappeared.

I then recreated a different size knapsack and was able to reproduce by filling it with cobblestone and adding to a frame.  This time I didn't get the warning but when the knapsack became visible I tried to grab it and it again disappeared and I was unable to recover it.

Please list all potential steps that will reproduce the problem?
1. Build a knapsack
2. Add items to knapsack
3. Add Knapsack to frame
4. Lose Knapsack
5. Kick self

What is the expected output? What do you see instead?
The knapsack should interact with item frames like all other items, It doesn't...

Do you have an error log of what happened? If so, please use the "**Attach**" link and attach the error log

To better aide in the diagnosis of the issue, from your console, use "**ks debug**" and perform some in game functions related to the issue at hand. Then use "**ks debug**" again to turn it off.  "**Attach**" the server log of the debug.

Please provide any additional information below.