peter hi peter i noticed the same thing but never mentioned it as i use auto scroll , the issue is when you load lyrics into a file it treats it as a manual file which is fine, but you cant manually move your lyrics to where you want unless you stop the song, this was not the case on ST2 even though manual settings would operate you were able to overide the scroll by finger movement to a place of song required.
this means people that dont want any auto scrolling to happen had a total manual option now you only have scrolling with auto sync or manual scroll which is still automated without timecode and determined by your mannual setting, some people dont want any auto scroll at all they want total manual control either finger or foot control.