Train schedule not properly updated

[planetmaker]

When the next active stop of a train changes (the yellow highlighted one), the complete schedule vanishes in the trains overview. Compare the two screenshots of the identical situation just seconds apart (I only reopened the train window; first screenshot is (nearly) how it should be, 2nd is like it looks after some time)

[kovarex]

Thanks for the report, it is a duplicate of this: 68953