Bug? Some waves are very small

[Haagenti]

In my current game, I'm being raided by waves like: 1130 Raiders or 846 Bombers or 732 Cruisers which are "points of attention". But I'm also raided by waves like: 47 Electric Shuttles or 51 Munitions Support which are more of the "bug on a windshield" variety.

The size of the raid is obviously correlated with the type, but for some types this leads to a raid size that is too small.

[x4000]

Not a bug.  It's a factor of the relative ship types, as well as the different sizes of waves (the faster the next wave comes on the heels of the prior one, the smaller it is).  So sometimes you will see a wave that is too tiny to be worth your while, but on the other hand it will escape out into the galaxy and come back later with more stuff if it isn't killed.