So, the newest 1.16.4 version is for 1.16.3, said that the version need to be 34.0.3 or above and below 35.0.0, but there is no version of 1.16.4 are under 35.0.0

In lieu of a proper fix, I've managed to fix this by doing the following:

• Open the .jar file in Winrar
• Open META-INF folder
• Open mods.toml with a text editor
• Near the bottom (line 54) - Update versionRange="[34.0.3,35.0.0)" #mandatory to versionRange="[35.0.3,36.0.0)" #mandatory

Yes, I just looked into this, and the build used the cached old values for the mods.toml instead of using the new values.

Thanks