Just ran into a SolidWorks drawing with some GTOL's. Parts of each missing when viewed in Creo View for some users, but not others.
Turns out those who saw correctly have AutoCAD installed. Seems that we need all to have the correct gdt_____.ttf file under C;/Windows/Fonts.
Publishing / Viewing SolidWorks is becoming a bigger and more complex puzzle every day. Might revisit seeing if we can get .plt output to work.