I can hold down a regular chord by hand or use the hold feature and the arpeggiator will properly play individual notes in the various patterns, i.e. up, down, excl, incl, etc. This feature is completely broken when using the Shift+chord feature.
Whenever I create a custom chord using Shift+Chord, I can play the chord as a chord as expected with the keystep stopped with a single key. However, the arpeggiator will not function properly with a custom chord whatsoever.
It will always play all notes of the chord all at once (in whatever time divisions the arp. is set to) as if "Poly" mode is selected, no matter what arp. setting is selected. If you select Poly mode, it actually seems to play only single notes.