News website Apple Daily posted on Jan 17 a report, picked up widely on socials, that Adobe discontinuing Flash caused trains to stop running in Dalian, China: As Adobe Flash stops running, so do some railroads in China.
The railroad system in Dalian, northern China, collapsed citywide on Tuesday for up to 20 hours after the Adobe Flash programing [sic] software stopped running. [...] Staffers were reportedly unable to view train operation diagrams, formulate train sequencing schedules and arrange shunting plans.
However according to the statement posted by the Dalian Train Depot (Google translated version) on QQ (WeChat):
Recently, some self-media published the information that "the suspension of Flash led to the direct paralysis of the train dispatching system" and "the complete paralysis of the Dalian railway system" is inconsistent with the facts. The railway department hereby clarifies that it is not the railway train dispatching system that is affected by the deactivation of Flash, but some computers newly purchased and installed with the latest Flash version of the Dalian train service depot cannot access the statistical current train system through a browser. According to the statistics of this section, the current train system has always been operating normally, the railway train dispatching system has been operating normally, and the railway transportation production has not been affected in any way.
(There is a GitHub page that apparently mirrors the--now deleted or at least inaccessible outside China QQ/WeChat page linked above.)
And a Twitter thread by Tony Lin, a journalist who broke the story, albeit in a slightly less sensational clickbaity manner