Yip that happened to me yesterday. Here's how you fix it. If you're in Think or Swim, go to the top right hand corner, click on Setup, then click on Application Settings, scroll down to Systems, click on that, and then click on Quote Speed, finally make sure you select Real Time (no delay). I just found out how to do this yesterday. Let me know if this helps.

Thanks you for the tip! I'll give that a try for sure.