FRANKFURT—Siemens Energy on Thursday cut its outlook after wind division Siemens Gamesa warned of prolonged supply chain issues, renewing pressure on the German firm to fully take over the unit in order to get a better handle on its problems. Siemens Energy, which owns 67 percent in Siemens Gamesa, said it now expects a margin on adjusted earnings before interest, tax, and amortization (EBITA) before special items in a range of 2 percent to 4 percent in 2022, down from 3 percent to 5 percent previously. The announcement came shortly after Siemens Gamesa slashed its outlook for the third time in less than nine months, creating a headache for its German parent which has limited influence on the separately listed subsidiary. “Performance was negatively impacted by supply chain related disruptions, which are now expected to last longer than previously anticipated, further affected by the continued impact of the COVID-19 pandemic,” …