Hello again, and sorry for multiplying topics on the forum.

I applied saguaros's advice and refreshed the screen periodically. It did the trick.

Now the problem I face is: the first take always migrates the same partial amount of information.
1110 articles are migrated
as Uncategorized items
with sometimes incorrect hits values (error margin is sometimes on the thousands)
* sometimes, but not always, with an erroneous author

I noticed most if not all of this Uncategorized content had an Unpublished status on K2. I tried to change the status for Published before attempting another migration, but the result was unchanged.

Also, I do not know if it is the plugin standard behaviour, but many of the contents are migrated without keeping their original ID. It seems the plugin gets it at first (as the first migrated items ID are correct), but loses its accuracy along the way. The most recent item ID should be 5307 but it is around 3500.

I tried the migration 3 times now, always with the same results.
Do you have any idea on how I should proceed to finally migrate my data?
Many thanks in advance.