I just did some web searches for NEC and IR LED light strip and saw some people using NEC protocols that start with 00. I tried adding 00 to the beginning of each code and suddenly they work.
So for NightSpeed you can change your power code from:
0xffb04f
to
0x00ffb04f
and it should work.
The XML you are using can probably be adapted quite easily to put the extra zeroes in while learning these codes if you need to do a lot of them,but since it only affects this one remote it is probably easier to just edit them by hand.