When editing options, exit the option dialog on any selection except the first item 'Threading'.
Re-enter the dialog box. The select list on the left still shows the last selected option, but the display on the right always shows the first 'Threading' options only.
Interesting, it looks like an XE issue. The codebase for all the plugins is the same, so I wonder if there is a VCL bug here. I'll have to investigate.
