After the 'truth' about him being the 'disciple' of the Sect Master and his Disciple Token was revealed to the Forger Masters, they all seemed to be in a hurry to leave, especially the Forger Masters of three clans except the Weston clan.
Once those five left, Forger Master Morris also left after giving Ace a warm invitation to his Spirit Space Hall and telling him, he could come to him any time if he needed anything.
Forger Master Stetson remained behind and took Ace directly to the Chief Forger Disciple District, which was in the south. Furthermore, Stetson also revealed to him that the Sect Master was actually from the Weston clan, so since he was his disciple, Ace had their backing.