Mario mash up pack flowers break when loaded

when i go to the flowers that show as 2 blocks like lilacs and rose bushes they break upon spawning.
Steps to Reproduce:
1. make a new world with Mario mash up pack activated
2.go to snow biome/ statue of piranha plant
3.wait for flower t spawn. it should break upon loading
Observed Results:
it breaks upon spawning
Expected Results:
it should break upon spawning. the flowers on the ground were before placed, and grass has the same problem