Paper Trading command not working

[eparks]

This command does not seem to be working when paper trading:

tradeSharesLong = 250;
buyLongsLimit = 45.0;
retcode = buyLimit("SSO", tradeSharesLong, buyLongsLimit);

However, this command does seem to work if I have manually purchased the symbol;

tradeSharesLong = 250;
sellLimit = 40.0;
retcode = sellLimit("SDS", tradeSharesLong, sellLimit);

Update: I seem to be able to paper trade the SDS but not the SSO?

Any thoughts?