For example ORA (SBF CFD, Orange). I use LMT price and GTC. For profit and stop also GTC. But the same if I select MKT instead of LMT. The order is cancelled.
If I use ORA SBF - Stocks there is no problem with OPG and MKT/MKL. Problem here is that it cannot be simulated in a paper trading account.
I have found that there are some differences with the data in demo/paper trading accounts. Demo use simulated data, and paper trading use real data, so probably that's the reason because I was able to send my orders in the demo account but that's not possible any more in the paper trading account