The bend lines were there in 2017, but in 2018 (SP3), they will not are not.
I cant find any setting that displays the bend lines or the boundary box.
What do I need to do to get them back!
I'm figuring you have already done the usual turning on (View Sketches)
Controlling visibility of the myriad objects in Solidworks, I find, is a constant challenge...
I met this bug very often. You have to create a new drawing or use Neville Williams way.
Maybe it is a problem of old template. Try to use original SW2018 drawing template.
Once the flatten tool has been activated, RC the bend lines-2 under flat patterns and make sure they are "Shown" and not hidden.
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