Edit Orders Not Updating Change Of Qty For A Line Item

When editing an order I tried to change the QTY but it did not update the order when saving or save and proccess in V 4.2.4

Also when Editing an order I wanted to ADD a Product with more than 1 QTY but CS-Cart would only ADD 1 pc. I can change the item Net Price Ea. total but not the QTY.

It works correctly on my local installation. Please try to disable 3rd party add-ons if you have any

When editing one specific order, the page opens out of the admin scope. It does not allow editing and saving??

any ideas how to resolve

What do you mean by " the page opens out of the admin scope" ? Please provide us with a screenshot