Unfortunatelly this is an old bug in AutoCAD...
When activating Top View, Grid disappears and Snap is no more aligned. We can temporarily solve this issue by typing UCS and selecting World. But as soon as we change again to 3D View and back to Top View, same issue appears. 
Do the following to solve this permanently...

We cannot imagine our work without using computers anymore, but on the other hand, sometimes they can also give us very hard time. A certain software bug is a real “nerve eater”. And no software is immune to it. So, also in AutoCAD we find these annoying bugs! One of them can move solid object away from its grips! That means, grips are on the right place, but the object seems to be blown out in space. If we have more of such objects, then the drawing really looks “exploded”.

Maybe you haven't tried rendering in AutoCAD, but it can give pretty cool results. Since AutoCAD 2007 the well-known Mental Ray render engine is built in AutoCAD. It is the same render engine as in 3ds max (if you do not change it there to even more popular V-Ray). It means, that AutoCAD render capabilities are quite strong, but on the other hand, not so simple to set up.

Our AutoCAD experts are very enthusiastic when it comes to exploring the depths of AutoCAD. Finding the right solution means thorough brainstorming, communicating with Autodesk experts and sometimes even our own programing.
And what if is a bug? Well…Then it is good to know that it is a bug (confirmed by Autodesk), so you do not loose time searching around for a solution. We will try to list them and suggest workarounds if possible…

…and what makes us different from other AutoCAD blogs?
Perhaps our blog is the only helping hand in the whole web universe for the current problem you have.

…and what’s the purpose of our effort?
To make an AutoCAD user an optimistic and satisfied customer!
To make AutoCAD a better drafting and modelling software!

Welcome to enjoy, use and comment!