LUD on Approved I140 after 2 months

[sup4GC]

I got a soft LUD on an approved I-140 2 months after its approval.
Incidentally it coincided with my Travel outside USA - The departure day.
Any idea , what it can be , and how could it affect me ?

 

[sotiredofwaiting]

Even though I got my I-485 approved, I keep getting LUD changed on old petitions.

 

[nervewreck]

I heard it from my attorney that most of the times these soft LUDs are automated status checks of petitions both approved or pending status, pretty much once every few months.