(I should really find a dedicated bug/glitches thread...)

Due to my newbie status on this forum I can only attach post images as one-by-one attachments.  Image captured when inbound Brickyard/VHP.  The software thinks I can get to a later waypoint before crossing an earlier one.  It also seems to believe that I won't burn any more fuel until the missed approach point - at Los Angeles, ILS 07L.  Now why the heck is that?

EDIT: It seems to be a complete failure of VNAV.  I have no top of descent; every point of the STAR appears at FL380 unless there is an altitude restriction (even between restrictions, it's at FL380).

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It is a bug in the FMS/CDU!

You are missing the T/D or missing the STAR/Approach for your arrival airport. See these two Topics:

Fix for missing T/D in CDU/FMS

Fix for missing end of route.

on how I get around those problems!

Hope this helps

Now why does it do that, I wonder?  I'll try it on my next flight.