When logging in via WorkStation all is fine, but logging in via WebStation shows a blank initial screen (see below).
The system has been configured with a user defined default workspace.
The default workspace contains an 'ampersand (&)' in the name.
Apply hot fix 18.104.22.168100 or remove the ampersand character from the workspace's name.
NOTE: This issue exists in all versions of StruxureWare Building Operation prior to 1.8, as of the writing of this article only 1.6.1 had a hot fix available to solve the problem.
The issue has been resolved in StruxureWare Building Operation version 1.8