Why wont my react component update

react16.3-component-I recently came across a mind bending problem after I updated to React 16.3.

ComponentWillRecieveProps did not trigger, but the staticgetDerivedStateFromProps triggered.

I was shocked thinking I messed up upgrading and there was a bug with the releases. I went through numerous github issues and bug reports to no avail.

After being flummoxed for 2 days, i declared officially I was out of ideas. In a discussion on a similar vein, we found out the parent component was actually unmounting this component when it received props and remounting it. After a shouldComponentUpdate fix, everything is fine with the new 16.3 land.

Also remember the spelling of ComponentWillRecieveProps