Free Coin Boost for Red Habitats???!!!

[iosbaby]

I play DS on 4 devices (2 ios, 1 android & 1 kindle fire) and I noticed today that all my large red habitats have some sort of free coin boost!!! I only see it in my ios devices and it's not the boost u get when u finish the goal for 10 epic red dragons because I haven't finished that goal yet and it's not the raging red rocks! Anyone know what this is about?

[dangerb0y]

Looks like all the 5 normal habitats are getting the boost

[iosbaby]

Looks like all the 5 normal habitats are getting the boost

I only had it on my red habitats, but just went into the game and no more coin boost!

[SaTy22]

Don't see any coin boost. Normal gain. That's it. Good night.