Mass Update Order Fields

Hello Team,
Few days back I had to update some 500 orders, hence, I ended up using mass order update as usual (have done it in past successfully maybe a year back). For some reason it didn’t want to work. Tried many times. I reached out to support and they straight up said that this is an unsupported feature and is user risk. So with no luck there I ended up using option of Order (No item) option in list. Which updated field I needed but ended up removing items on all those orders and hence payments. So, I had to pay infusionsoft for restoring those order.
Fast forwarding today and I have to again mass update orders and manual update one by one will take forever.

There are 3 “infusionsoft by Keap’s ID” as keys. I have tried all three with no luck either.
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Can someone please test this feature and advise if it is working as usual. If yes can you please assist me on what am I doing wrong here.

Thank you, Much appreciated