When RefreshTitleBar is not working.

Recently I came into this issue – when I change AppTitle property and call Application.RefreshTitleBar method – it does not work at a client, no error, just nothing happens. After bit digging into this – I found a reason: method fails when you also have AppIcon property pointing to icon file, which does not exist on PC. Workaround is simple –first you have to read AppIcon property, check that icon file exists, if no – delete this property and then proceed with AppTitle.