Good question. They got one system alright, which might explain the slow upload of content until Sept. last year. Is that system still in the Czech Republic, or did they ship it back to 4K Studios ? Who knows.

Presumably they found another way to upscale the large amount of Paramount content last year.

BTW, that lawsuit filing was found by a Ihub "basher", and seems real alright, not invented as one could expect from them.
I merely read the filing, and tried to understand a thing or two from it.