Hi folks.
I got the D5500 recently as a 2nd cam, and used it for the first time at a gathering with some friends.
Tried taking group photos with the self-timer, when I discovered that the camera would revert back to single-shot was taken.
This seems like an odd behaviour, so I'm wondering if there's a menu setting to 'lock' my release mode selection.

Basically what I did was:
1) Set up the camera on the tripod
2) Change the release mode to self-timer 10seconds, by
a) pressing the release mode button on the side of the lens mount
b) tapping 'self-timer' icon on the info screen
3) When I press the shutter release, the camera counts 10 seconds and takes a shot. All appears normal.
4) Someone goes "take another photo just in case", so I press the shutter release button once more. The camera immediately fires!

so basically I have to repeat step (2) after each shot, which is kind of odd.
If anyone knows the menu setting for this, that would be greatly appreciated!

Thanks in advance!