Sell orders not being cancelled in Paper Account

Problem

I have created some orders through the Python API this weekend to cancel them a few moments later. This used to work for months. Now only the BUY orders get cancelled, the SELL orders remain.
I cannot cancel them both through API or through the dashboard.

Paper or Live Trading?
Paper Trading

Hi @ZlaTanskY is this in Paper or Live? Able to send an email to support@alpaca.markets so that we can look into the account.