paint problem need help please

I'm still not getting what he can dig his fingernail into. If it's just the bumps, maybe the car is just covered with tree sap.

If the clear is soft, that is another issue.

Here is something I found for tree sap removal. Try some of these.

http://www.usautoparts.net/bmw/repairs/detailing/tree_sap.htm

One thing that can happen when layering paint...... Primer, sealer, base, clear with candy, clear with metallic, followed by more clear (this sounds like what you have).

If you are not spot on with your application, times and product choices, things will never cure correctly.