World Editor
Sorcerer doesn’t have icon World Editor, also it mean no icon for this unit in old maps too
Backward compatibility
Some TFT models uses “war3.w3mod:” prefix. So old maps using these models have invisible models.(example Marketplace and Tavern).
If map have SLK files then Reforged can’t correct read data from map (no icons, no models etc)
Lags
Game engine can run with smaller amount units than original WC3, for example - Survival Chaos(old) causes crash, because many units(but no crash in original game). So I guess latest version have less Decay timer for reducing units on map