Starting yesterday I started getting error messages from enterprise pdm everytime I try to save a new drawing file.

It reads:

"Failed to add the new file to the vault.

Description='The file format is not recognized."

However, a second later, it IS added. I recently edited the associated sheet format (.slddrt) but I dont see how adding or removing

an entity or property could cause such an error.

Anyone know anything about this?

Thanks