Blocks above 127 height don't have ticks and will never be updated
That issue can be related to how blocks are updated in chunk - they still uses vanilla logic (in Level.class):
It will be better if that logic will be switched to sections updates (there is hasRandomTicks method in sections, but it is never used), something like that. It will also fix some other things: cave sounds and snowing above 127
Blocks above 127 height don't have ticks and will never be updated
That issue can be related to how blocks are updated in chunk - they still uses vanilla logic (in Level.class):
It will be better if that logic will be switched to sections updates (there is
hasRandomTicks
method in sections, but it is never used), something like that. It will also fix some other things: cave sounds and snowing above 127