Just in case you are still interested in Bugs:

In Breach Mode, transferring weapons and items from reserve into inventory makes them disappear.
This happened to 3 of my items, that I've noticed so far.
2x HyperION + 1 ExpandENkit.sml

Any attempts to reproduce it on purpose were out of luck.

In this video
what I did was to remove 3 ExpandENkit.sml from the inventory and then double click on the Hyperion in reserve view.

As you can see, the game stucked displaying the progress bar.
There was nothing I could do except to return to the inventory and the weapon was gone.