Unable to enter sell transaction after “cover short” transaction of a security

Question

Here are my transactions for LUNDIN MINING CORP (LUN)

2025/NOV/10 short sell

2025/NOV/20 cover short

2026/JUN/01 BUY

2026/07/15 SELL -I am unable to enter sell transaction

see error

Note- If I  delete  short sell and cover short transactions  I am able to enter sell transaction

Arctic Hare · Answer

Does it make a difference if you check the "Cover ALL Shares in this Account" checkbox?