Describe the Issue:
Perhaps stating the obvious, but when using with the Block Physics mod, tree growth causes all the tree's leaves to fall.

Steps to reproduce:
Run this mod with Realistic Block Physics by xBigEllx

From a comment on their CF page:

Sorry for the late reply. If you're still having problems, it's probably best to just leave the blocks from Dynamic Trees without a physics definition. If you're using 'ApplyDefaultBlocks', you can simply add "dynamictrees" to the 'ApplyDefaultBlocksBlacklist' in order to prevent Dynamic Trees blocks from receiving a default physics definition.

By the way, if that blacklist supports block tags you should be able to apply the dynamictrees:leaves tag to fix this for DT and all add-ons that support our tags.