Hello, I am using TWS 922.6 in sim mode and I can't trade calendar spreads. I am trying to buy at best ask or sell at best bid using booktrader, spread trader and quotes and I never get a fill. The buy order just stays there as if it was non marketable. The quotes are fine, I checked with my other platform. Sometimes I get a fill at ask + 5 ticks or bid - 4 ticks... Is it a sim only bug? How can I work on it? Thanks.