I'm not sure if this is important, users haven't experienced any negative effects from it, but it seems flawed.
When debugging i noticed the FCacheCount going very high. I've traced it back to the following code inside function TWPAttrCache.GetIndex(const CharAttr: TWPCharAttr): Integer;
Code
if (FCache[i].MaskHash = CmpHashCode) and CompareMem(@(FCache[i].Values[1]), @(CharAttr.Values[1]), 16 * SizeOf(word)) then begin
In WpTools 5 this used to be:
The WP6 condition never seems to evaluate to true because FCache[i].MaskHash <> CmpHashCode
I haven't looked further into why this fails.
WpTools 6.13.1