Some of this could be OE (operator error) but I've noticed a few notes do not respond to pitch bend and some fail the hammer on/pull off effect. Don't know why but I may contact them soon.
Those notes seem to be the standard open cord notes. Most if not all others do respond. Very odd.
Also, as with most Ample and Kontakt Player instruments, you need a controller with 76 - 88 keys to operate the full range of key switches when playing live or recording. 61 doesn't cut it.
[EDIT]
The non bending notes are one of the many limitations of the free LITE versions:
1. No capo scaling
2. All strings except the high E will only play in the 1st 4 frets. The high E plays the full neck.
(what do you want for free?)
According to one video the free versions used to have only 1 effect. Mine have the full lot, though there may be some limits on them.