**Themes do not work.**
Client is on V2017, SP1, the ""c"" product and is using the ""Standard"" Sage settings. I cannot get any theme to work--the out of box ones based on either Standard or Classic, any new ones, the frame or background color, nothing. The preview looks correct, but doesn't work on any screens. I see that in sy_theme, the theme is valid with my color choices, and that in sy_company, the company has the appropriate theme. I worked with Sage for an hour and they don't have any suggestions. The issue is on the server as well as the terminal server (Citrix environment). Customer does have ACSG Multi bin and Avatax.