Hi @Darkforce_the_ilogic_guy. It is difficult to understand your statements, but it sounds like a pretty common issue. You can not get all of the styles in your drawing to update properly. Even after using the built-in update tool, when you go to use that same built-in update tool again, the same styles are still listed again. I have seen several cases of this, where they tell us to do certain logical sounding steps to fix the problem, but they do not seem to work.
Consider the following things:
TitleBlockDefinitions
BorderDefinitions
SketchedSymbolDefinitions
Styles that depend on, use, or reference other styles, such as:
DrawingStandardStyles
ObjectDefaultsStyles
RevisionTableStyles
PartsListStyles
If a style is being used by entities within any of the TitleBlockDefinitions, BorderDefinitions, or SketchedSymbolDefinitions, then you will not be able to get rid of those, because they are locked within DrawingSketches that are themselves locked within those definitions. If you have multiple 'DrawingStandardStyles' (listed under 'Standard' at the top of the Style and Standard Editor), while the 'filter' (upper right corner of Style & Standard Editor dialog) is set to "Local Styles", then you may need to switch the filter to "All Styles", then activate a different DrawingStandardStyle from the global ones, then purge all other standards, and their sub styles, out of that drawing. The standard style references pretty much every other type of style there is, so it is very complicated to deal with. Then the document will only contain a fresh copy (from the global styles library) of another standard, and its associated styles, and all other styles will be flushed out. Then reintroduce each item back into your drawing, one by one, checking updates each time, to pinpoint when the problem starts again, if ever. It can be pretty complicated and time consuming.
Wesley Crihfield

(Not an Autodesk Employee)