We have symbols in our drawing template files that are turned on and off by layers driven from a drawing program and a drawing parameter.
When I open the template file, everything looks good.
When I use 1 of the 4 templates in a new drawing, all of my symbols get copied to one layer so the blank on the drawing face because there are 2 symbols, one active, one invisible on top of each other. We can fix it by cutting the symbols in the layer tree and then deleting the symbol from the drawing face. so the active one becomes visible again. But, any symbol added to this drawing will now go to that one layer and be invisible, until we move it.
I would not think it is in the drawing program or state names used, since 3 templates/formats work fine.
We are on Creo2 m100 but this issue goes back to Wildfire2 m220 when we added a new drawing state to the lists.
The states are :RD, UCNI, ECI, NO_ECI and UCNI_ECI. The UCNI_ECI is the state that was added almost 3 years ago and has always been troublesome only on the E-size assembly drawing template. When I did the changes to the drawing program, this was the 3rd template modified and I had recorded the steps when I did the first one so I could repeat the process.