alt Hacker NewsIt's a complex/murky matter with lots of allegations in every direction that's hard to summarize properly.
The absolute barest bone / neutral summary is that Filian is very popular (3.2 mil subs on yt, 1.3 mil subs on twitch, although she may be retiring currently, or is doing an extensive publicity stunt as her channels and socials are wiped clean). Two years ago, the model's creator announced [0] that Good Smile is making a nendo based off his model for an unnamed vtuber, and that they were not informed beforehand, let alone credited or compensated. They were trying to contact Good Smile and said vtuber to resolve the matter. After a few days Jingo posted an extensive message [1] that the situation was resolved and the parties are cooperating, further noting, among other things, that "free to use in VRchat" does not mean "free to do anything without any credit".
Note that this was not the first time Filian made merch off this model, and it was not stated clearly why Jingo took steps only at that point. Possibly because they never heard about Filian and only realized what's going on since Good Smile is a well known Japanese company.