I USED A DIESEL EXPRESSION TO PLOT A FILE LOCATION LIKE PLOT STAMP

Hi, I used a diesel expression on a field text to plot the file location, like a custom plot stamp. This work perfectly if I use the Plot command, but when I use Publish or Export to PDF, the prefix file name change and plot a wrong location, somebody can help me to fix it. I need the right location on my files plotted.

This is the diesel expression I'm using

$(GETVAR,DWGPrefix)$(substr,$(GETVAR,DWGNAME),1,$(+,-2,$(strlen,$(getvar,dwgname))))

I added 2 pictures to show you the final plot result using PLOT COMMAND and PUBLISH/EXPORT TO PDF commands.