An agreement was about to be reached when the other side raised new issues.

快要达成协议的时候，对方又节外生枝。

《新英汉大辞典》

An agreement was about to be reached when the other side raised new issues (or caused complications).

快要达成协议时，对方又节外生枝。

youdao

"I look nothing of the sort," said Bree. But then suddenly he rolled round on his side, raised his head and looked hard at Shasta, blowing a little.

“我看起来丝毫也不可笑。”布里说道。但这当儿它却突然翻身侧卧，抬起头来，紧瞅着沙斯塔，还稍稍有点儿气喘。

youdao

Michelle Obama was born and raised on the south side of Chicago, Illinois.

VOA: special.2009.01.16

Michelle Obama was born and raised on the South Side.

VOA: special.2009.01.12

Commercials added to both sides, particularly on the short side, which raised their net short position.

FORBES: FOCUS: Speculators Return As Gold Buyers -- CFTC Data

They are thought to be fairly safe, although some experts have raised concerns about side-effects.

BBC: 'Give out statins with junk food'

Being raised on the side of a cliff anywhere tends to favor the strong, sure-footed and stocky, and the environment of the Andes is a particularly punishing place to grow up.

CNN: Takanakuy: The fighting festival of Peru