joined audio region file name problem

New problem happening when I comp tracks from take folders, flatten, then join/merge the regions to one region/file. Default file name formatting differs: desktop uses a '_', while MacBook uses a ':'

joining regions on the desktop machine creates a file named "Track Name_ Comp A.aif"

joining regions on the laptop creates a file named "Track Name: Comp A.aif"

When I open sessions with files joined on the opposite machine I get the Audio file not found dialog, and notice the difference in file name on disk and the expected file name.

MacBook Pro recently upgraded to Sierra

Mac Pro still running Mavericks

Both machines running Logic X 10.3.2

MacBook Pro recently upgraded to Sierra

Mac Pro still running Mavericks

Both machines running Logic X 10.3.2

Logic 10.3 cannot run on Mavericks or Yosemite. El Capitan is minimum requirement.

Logic will go to 10.2.2 on Mavericks.

You must have El Capitan at least on the Mac Pro if you're running 10.3.2

Oh, I was mistaken. I am running OSX 10.11.6 El Capitan on the desktop, not Mavericks.

So the problem still stands