Unity on PC - can't click anything in Game preview

Hi all, hope you can help

We have had a puzzle game created for us in Unity and we have now received the final sourcecode.

The game involves having to click/tap on objects on the screen

My colleague works on a MAC, and he is able to Play the game perfectly well inside Unity

But when I try it on my PC I am unable to click on the gameplay elements. I click and nothing happens. Its strange because I am able to click through the menus/pause the game etc. I just cant play the actual gameplay part.

I have the latest version of Unity (downloaded today)

Any ideas of what could be happening would be much appreciated. I understand its difficult without seeing any code, but perhaps there are known issues on PC or general settings to look for at first

Many thanks

 

Maybe the layers were somehow messed up and then raycast mask is wrong?
(usually happens if transfer project with unitypackage..)

 

Hey mgear, thanks for this. Can you point me where to look to check this?
Thanks

 

Maybe there are some platform defines in code like Application.platform==Runtimeplatform.OSXEditor
Try find "Application.platform" or "#if" in your project

 

check the object that you cannot click, does it have some layer assigned (inspector) ?
and in code, if there are some Physics.Raycast, with layermasks.