Release 19.3 fixes a historical issue whereby the system wasn't enforcing the Minimum Parts Deposit set in the System Parameters.
Therefore, after installing this release, some users may find that the system will not accept changing the deposit below the suggested value.
If this is the case, then please check in with our Helpdesk to confirm what the Minimum Deposit has been set to and raise a ticket to update this if it doesn't meet your requirements.