Okay so currently the problem is you can't use "Check bank for equipment" and "ignore equip tasks not in inventory" because there is a conflict between the options (because the script can't know for which equipment it should skip or go to get it from the bank). So, in your case the correct settings would be using either of both settings mentioned below:
Depositing the scimitars in your inventory AND enabling "Check bank for equipment" and the script will go to withdraw them whenever needed
Having the scimitars in your inventory AND enabling the option "Ignore equip tasks not in inventory
Thank you for providing a detailed video, I'm pushing the fix for looting arrows when inventory is full in V3.51