Running Macros swb files. Cannot open

When I download files from vendors and they are swb files, I run the macro and get this message:

"A serious error occurred during macro playback. Perhaps the macro was not played in the correct context. The system could be in an unstable state now."

This happens after I have opened a couple of files already.  Once it crashes SW, I will restart SW and then it works fine.  Please help!!!!!  This is such an inconvenience.

SolidworksAssemblies