The transfer happened in July rather than June so it went against the (at the stage still to come) 20/21 season rather than the (just finished) 19/20.
19/20 was always going to be a huge loss due to the lack of football for the last 3 months and deferred tv revenues etc.
Pushing it to 20/21 then wrote off the 19/20 losses and attempted to make 20/21 look better.
The 20/21 results will get released in spring 2022 and the aim will be that deferred tv revenues from 19/20 and transfer profits offset lack of 20/21 matchday revenues. Suspect the cup performances and league win will generate sufficient income to stabilise the accounts as long as wages didnt grow again.
But any transfers from now this summer will only affect 21/22 accounts