Delay on Sell order execution

Hello,

Today was my first time using 212 Invest with real funds as opposed to my practice account. Are there any external reasons that from the moment I clicked ‘sell’ there was a 4 minute window in executing my order? This resulted in a loss of potential profits that were there upon deciding to sell. Is this a common issue that I should be vigilant of here on 212? I’ve never really had this with the practice account although I’m unsure they can be compared. Any further info on the topic would be greatly appreciate.

Thanks!

Well liquidity will play a part, and how it trades SETS Vs SETSqx etc

What stock was it out of curiosity?