Check Who Changed Order Status In Logs

I have an order that has had chenges made to the status and cant see who made these changes in the logs, does anyone know what this means without a user, just a dash, and can I find out which user made the change

https://prnt.sc/26k4wq8

I have ecomslabs order ststus vhange addon which wokrs well, but that also doesnt seem to know

https://prnt.sc/26k4xb2

thanks

Most possibly it means system. E.g. order status was changed on callback from payment system

strange, we dont have any payment sustems, this is a dedicated site for 1 customer who orders by po number? using the "offline" payment method

So the order status was changed manually? Do you use any integration with 3rd party system (crm,erp,etc)?

no, we dont. it looks like when the order status check was done it also at the same time changed the order status