Cannot insert any variables onto new and existing title blocks in Title Block Designer.
In one case this was apparently caused by a bad seed file. Replacing the seed files used by the software resolved the issue.
Replace the ANSI-IEEE_T.DGN file if using the ANSI-IEEE standard and IEC_T.DGN file if using the IEC standard. If that does not help, try replacing all the seed files.
These files are typically stored in the \Templates\Page\ subfolder of the [Promise Data folder]] and the Substation Data folder. Check Setup > System Paths to confirm.
Use seed files from backup or from a working machine. Alternatively, "as installed" versions of the seed files can be found in the Data folder archive.
Keywords: titleblock, title block, variable, name