On 2 June, "Scuffle" sailed from Morotai with her division to carry out a pre-invasion sweep in Brunei Bay. She ran aground on a reef on 6 June, damaging a screw, but was able to carry out her assigned sweeps before sailing, on 12 June, for repairs at Subic Bay. She rejoined her division on 26 June off Balikpapan and provided support to YMS's performing the pre-invasion sweep. She left Balikpapan on 8 July and returned to Subic Bay for a month of overhaul. "Scuffle"s task group received a Presidential Unit Citation for its service off Balikpapan.