Unable to create "Limit" orders to close all positions (only close at "Market" works)

[ltfschoen]

My Acala Mandala Address: 5DHcRs9udMCKtEmJEABY2HpECyTHHxgLL85pFFzN72SatAoQ

If I go to https://flow.laminar.one/margin/2/XAUUSD, "Deposit" say 9000 aUSD, then in the "Basic" section open a BUY/LONG position of 6 FXAU using 2x leverage, it shows that position in "My Positions / Orders Open", then I tried to open the opposite trade that's too much by creating in the "Basic" section a SELL/SHORT position of 15 FXAU using 2x leverage, and it gives error marginProtocol.InsufficientFreeMargin as expected (see attached screenshot)

But if I tried creating in the "Basic" section a SELL/SHORT position of 5 FXAU using 2x leverage (so I could sell as a "Limit" order instead of a "Market" order), it also gives error marginProtocol.InsufficientFreeMargin (even though it'd just cancel 5/6ths of my BUY/LONG position) (see screenshot below)

I was only able to open SELL/SHORT position of 2 FXAU using 2x leverage, successfully.

So I could only close my positions at "Market" rates (instead of using "Limit" orders) by clicking the "Close" buttons in the "My Positions / Orders Open" section