Most short positions going thru ok today except...there are a handful where i"m encountering a BLUE status order line along with a little part of the bar green (about 15% of the status bar is green and 80% is blue). I suspect these are issues which are not available to borrow. But there's no usual message saying they're not available. Anybody else encountering this issue on TWS build 867.4? Could it be some new feature?