The hosts continued on the front foot and went ahead for a third time with nine minutes remaining as Waldschmidt chested the ball down before hammering home from 13 meters.
Veteran playmaker Thiago Neves pulled a goal back for the hosts by nodding home after a Luciano Batista cross.
The AFC Champions League East Zone will resume from the group stage and continue through the Round of 16 to the quarter-finals and semi-finals.
Ji, featuring in WCBA side Daqing as a coach-player, doubled up her happiness from record-breaking scoring performance on Friday with Daqing's first win during the current campaign.
"Today, he is unable to train. We will wait until tomorrow [Friday] to give a definitive answer to [head coach] Tite."
After Chen's fast break layup, Jiangsu had an 11-point lead with 3:30 remaining thanks to an 8-0 surge, and didn't surrender its advantage from there.
To support the delivery of the season, athletes have agreed to a uniform pay reduction of 15 percent with the exception of those already on minimum payments.
Sheffield United's striker Oliver McBurnie could have made it 2-0 for the home team in the 79th minute but his promising header bounced off the crossbar of Dusan Kuciak's goal.
Despite its backcourt duo of Chen Yanyu and Chen Xinlei's lackluster performance, Shaanxi can still find positives as sophomore Yu Jiarui posted a career-high 35 points.
The Everton midfielder showed glimpses of quality, particularly in the first half, but faded before being replaced by Steven Alzate in the 74th minute at Estadio Metropolitano.
"My own family is a very ordinary one and the route I became the world No. 1 woman golfer is not as expensive as imagined. It only costs no more than ten dollars to play an hour in the driving range."