BUG: Fixes bugs and refactors code in GroupMicrotextureRegions

docs/GroupMicroTextureRegionsFilter.md

@@ -13,7 +13,7 @@ This Filter groups neighboring **Features** that have c-axes aligned within a us
 
 NOTE: This filter is intended for use with *Hexagonal* materials.  While the c-axis is actually just referring to the <001> direction and thus will operate on any symmetry, the utility of grouping by <001> alignment is likely only important/useful in materials with anisotropy in that direction (like materials with *Hexagonal* symmetry).
 
-Developer Note: It is **very important** for end users to **seed** the data if they *ever* intend to replicate the calculations. The randomness involed in this filter aims to help avoid bias developing in the output, however with out of core this will severely slow down the calculations at runtime. In order to remedy this we are in the process of developing a floodfill method, but the bias formed by sequential parsing is something one should consider when utilizing this method.
+Developer Note: It is **very important** for end users to **seed** the data if they *ever* intend to replicate the calculations. The randomness involved in this filter aims to help avoid bias developing in the output, however with out-of-core this will severely slow down the calculations at runtime. In order to remedy this we are in the process of developing a floodfill method, but the bias formed by sequential parsing is something one should consider when utilizing this method.
 
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