Sketch lines hidden when editing

[brandon.petersonHRPXJ]

I am trying to go back in the timeline and edit a sketch, but whenever try to edit it, all the lines disappear. My visibility is toggled on for both the parent sketches folder and the sketch I am working on. Whenever I select the sketch in the browser I can see the lines, but whenever I try to edit the sketch feature, the sketch is not visible. 

I ended up closing the model and reopening it and that fixed the issue, but then a few minutes later another sketch did the same thing. Hopefully there is some other solution, because constantly closing and opening a file every few minutes is pretty tedious. 

Here is a link to the screencast: https://autode.sk/3xKlmZb 

[jeff_strater]

it is hard to tell without the design itself.  Can you share it here?  Thanks.

[brandon.petersonHRPXJ]

Sure, but like I said in my post, once I close and reopen the model the issue goes away until another random sketch has the same issue, so the sketch in question (sketch 30) probably wont be showing the same error I described.

I should also point out that I recently had to make a major change to the first feature in the timeline of this model, which is why there are so many errors anywhere past where I am currently in the timeline. 

[jeff_strater]

@brandon.petersonHRPXJ - thanks for the design.  Interesting that it doesn't always happen.  If you stumble on a sequence of events that causes this to happen, we would be very interested.  I can't say that I have seen this a lot, but I think I do remember a few cases where behavior like this was reported.  Thanks.