What wallet version and daemon are you running?

What blocks did you solve so I can cross reference blockchain?

We need as much information as you can possibly provide so we can see why this occurred.

We need to address this ASAP if this is the case.

There is a fork going on so we need to address exactly why this occured.

If you were mining on old daemon and solved blocked they may be lost and that is why you did not receive coins as a forking is occurring.