I tested both the tablets that I’ve got: Wacom Medium One and Huion Kamvas 13.
And I found out that dynamics pressure works properly with the Wacom Medium One only.
And if one switches the Aseprite’s pressure on Huion Kamvas 13 on, she/he can draw only a solid lines with the maximum thickness specified in the dynamics settings. Other functions of Aseprite work fine on it.
(I work on linux)
Just thought it might be interesting.