Fixed a critical issue that caused noise features such as vacuum to have random holes & spikes. This was a complex caching issue that is now resolved
Fixed several locking issues in the parallax layer
Added an option to the concurrency settings in iris called unstableLockingHeuristics which will disable locking of chunks in parallax regions for a 5-10% performance improvement at the risk of producing inaccurate object placements every once and a while. It is disabled by default obviously.