How exactly does Loop & Hold work?

This has probably been asked before, but there is so much stuff on this site now, it can be hard to find specific topics. My question is; If I set a sample to 'Loop & Hold' it stops if I then press the 'PLAY' button. For example if I set a melodic sample to Loop & Hold on track 1 and then move to track 2 to record a drum beat, shortly after the bars start playing, the loop stops.
Also if on grid edit I enter a sample that is set to Loop & Hold at the start of bar 1, the same thing happens as soon as I press PLAY; I get a second or so of the sample and then it stops.

The only way that Loop & Hold works as I would expect it to is if my MPC is not playing. I'm sure someone here knows exactly what I am doing wrong.

Thanks!

It is ONE loop-pool across ALL tracks. You got 64 slots.
If you play same note/pad on any other track it will cut. Deal with it. Use it wisely and with caution - it may blow up

but seriously I prefer old way to engage loop (works on all systems)
1. go to Trim and turn on the loop mode for sample
2. in program where is (Oneshot/Note on/Loop&H) you select Note ON
3. you play d damn sample
4.engage by holding a pad and pressing for instance: next seq, track, mute or erease

will loop until you hit a pad or there will be note played by seqencer.
eventually set up your "loops" to bank D, As you probably usually use A,B ,C primarily

Ah, now I get it. I did not realize this was how the Loop & Hold function worked. I thought it was a shortcut to the way you described in the second half of your post.

I get the impression it is for performing with just loops maybe. That's cool though, it's sounds like a fun thing to play around with now that I know how it works and I still have the other way for looping like I originally wanted to.

Thanks for your reply!

BTW this function is not tempo based (to sequencer) so combining it with some sequenced stuff brings it to it's finest all is recordable. You have to sacrifice some #notes that are not in use.

In other words, is basically setting it to a toggle instead of momentary switch on the loop.