Yes, last year—erm, I mean in 2020—the Doyle estate sued Netflix for creating a movie in which Holmes shows emotion… they claimed:

“Among other copied elements, the Springer novels [on which Netflix’s film is based] make extensive infringing use of Conan Doyle’s transformation of Holmes from cold and critical to warm, respectful, and kind in his relationships.” [1]

This is essentially the entire substance of the lawsuit: that creating a new sister character that Holmes felt affection for infringed on their copyright of a single passage in one of the later Doyle stories where Holmes expressed concern for Watson who had gotten shot.

Netflix settled.

[1] https://www.documentcloud.org/documents/6956021-Sherlock.htm...