Emulator

Must be a 64 bit issue, because with Windows XP 32-bit I don't have problems with input of multiple active wiimotes (tried NSMBWii many times), whether I choose real+real or real+emulated wiimotes...
The only "problem" is that sometimes the wimmotes get "switched" so player 1 changes in player 2 (and 2 in 1), so you have to use the other Wiimote (real or emulated) to start the game (as player 1)...

I've never experienced either of these issues. (Multiple Wiimotes not working, Wiimotes 1 and 2 being swapped)

Well I have experienced both and maybe its the same issue. I'm at work for awhile so I can't confirm anything but maybe the issue is just simply controller 2 prevents 1 from working or steals its functionality. Is there nothing in your last few commits that could have triggered this? Again fresh install this repros for my completely and having only one wiimote works perfectly.

I am facing the same problems with 2 non original wiimote ( both detected ad Nintendo RVL-CNT-01), only 1 wiimote that able to connected to dolphin,

I got working 2 wiimote with toshiba BT stack but only 1 WMP and nunchuck is detected. so strange and wiimote very unstable.

Still occuring. It's really weird how some games seemingly work fine but it takes like 10 boots before NSMBW is functional with 2 wiimotes active.

Did you need any more info on this regression for the fix?

Figure out the exact revision that causes your issues.

As I thought, it started in r6679. NSMBW worked fine before, but after these changes, rarely starts with 2 wiimotes connected...along with other games suffering from the same, albeit less frequent, issue.

Another thing i noticed that's probably related in some way is that after entering the wiimote menu once (in r6679), setting the 2nd wiimote to something, save, reopening wiimote menu, and click on configure, the settings for wiimote 1 will be wiped out and they'll be nothing assigned to ANY wiimote. Even if I reassigned stuff there, NSMBW and others do not work correctly.

Still occuring as of r7338.

Still occuring as of r7589.¶

but I notice evolution (with fix r7571 ?)
I looked MAC adress of wiimote, apparently dolphin like put them in the same order than MAC address
I think, all right, I will pair them, one by one, in good hexadecimal order like this & test:
00:17:ab:39:e8:02
00:18:00:01:37:c5
etc...

pairing 1st wiimote => assign to player 1 => test : all right (light 1 is on & input works perfectly)
pairing 2nd wiimote => assign to player 2 => test : all right (the same)
pairing 3rd wiimote => assign to player 1 & 1=>2 & 2=>3 0o'...=> test : input sometime works (2/3 time), but more buggy.
pairing 4th wiimote => assign to player 1 (again) other wiimotes reassignate again.
strange, isn't it ?...
=> test : player 1,3 & 4 works 2/3 time and player 2 never work (sometime not connected at all, sometime connected, but with battery bar empty !! & no input.
ok...
I replace the 2nd real wiimote by emulated wiimote => test : player 2 works (no surprise), but it's now player 3 with real wiimote who have the same issue (no input & battery empty).... -__-

I hope my comment is undertanding & excuse me for my bad english ^^'...

The more wiimotes are connected (or selected to be active from the options), the more buggy it gets.

With 1 or 2 wiimotes (I use emulated wiimotes, have 4 logitech gamepads) all works fine, but adding 3rd or 4th emulated wiimote, things get messy. No input, controller deactivation etc.

Might it fix things is people were able to disable the wiimote speaker totally from the emulator again (instead of just the not working option in the ingame options, and the volume bar that doesn't completely disable the wiimote speaker)? Changes related to the wiimote speaker started the issue I think.

I didn't experience this issue, anyway there were some changes in latest revisions, so is this still happening?