Could not value contract at this time---SSF in IB

[lars22]

I trade with a demo account with IB right now. Every time I try to buy a SSF for a stock, like 7 times out of 10, I get "Could not value the contract at this time".
Why is that so? I see the bid-ask prices, and I see the bid-ask sizes, why doesnt it work every time?
Does it happen to anyone else, or maybe this happens only in demo accounts?
thx

 

[def]

Quote from lars22:

I trade with a demo account with IB right now. Every time I try to buy a SSF for a stock, like 7 times out of 10, I get "Could not value the contract at this time".
Why is that so? I see the bid-ask prices, and I see the bid-ask sizes, why doesnt it work every time?
Does it happen to anyone else, or maybe this happens only in demo accounts?
thx

Should be just the demo account - try the paper trader. It might be possible that you were testing this outside of US trading hours and thus the contracts were closed.