Latest build doesn't allow execution of OTCBB stocks. I was in one with a conditional that didn't trigger yesterday (even tho my others did that weren't OTCBB). Was advised conditionals dont work in the latest TWS. Today, I couldn't sell at MARKET. No executions. Hold time was 10min+ at IB. Workaround found: Logout, go thru webtrader. You CAN execute that way. No notice anywhere of this serious bug. .. and I upgraded because the version of TWS i was using had ANOTHER bug that caused ???s to appear when I login with no account access. Yikes, doesn't IB have a stable release of TWS?!?!