Alright folks, bear with me, because it doesn't look like this one is going to get less messy. As reported by Tech News Space, it appears that Robert Kurvitz, the lead developer and writer on Disco Elysium, is suing Studio ZA/UM, the development studio of Disco Elysium, via his own company Telomer. Kotaku AU seem to have corroborated this, finding a record on the Estonian Ministry of Justice's website showing Telomer has filed an application against ZA/UM Studio to "obtain information and review documents", which you can see for yourself here.
This comes after Martin Luiga announced (in a frankly kinda weird post) the dissolution of The ZA/UM Cultural Association, and that Kurvitz, writer Helen Hindpere, and art director Aleksander Rostov were no longer working at Studio ZA/UM.