Do insects set off motion activated lights?

It can, if the motion sensor has a daytime shut off photo cell installed in it. When a light is turned on and the motion sensor see the light it thinks it is daylight and shuts the motion detector...

There is a power or ground wire hooked up backwards. (95%sure)

well most people say turn off the light but you could say switch of the light.

It could.

Try disconnecting your battery and re-connecting it, this should reset the computer. If the light comes on again you need to take it to a shop and hook it up to a diagnostic machine. Answer. all i...