any ideas why when extruding certain parts of my sketch, it deletes other parts of my sketch? I’ve even had it delete things on other sketches on the same file even when they are not selected or close together. I’ve been using this program for over a year and have never had this problem.
You are using the History/Parametric Beta version? I’m interested in this answer myself as it happened to me. I think someone posted the answer here somewhere recently. I’ve forgotten the answer and I can’t find it.
Are you sure that the sketches get deleted after doing an extrusion?
It is my understanding that sketches get auto-hidden after the extrusion.
It happens on the non-parametric version as well. I’d like to understand why the auto-hide?
Same as Mike, auto hide in the non parametric version. I thought it was just a bug until I seen this topic.
Replying to draw some attention to this.
As a veteran user, past versions did not automatically hide the sketch after extrusion, and this adds an extra step and waste to the design process. A toggle for “auto hide after extrusion” would be helpful if there are those who see benefit in this.
This has come up several times mate and they’ve agreed to change this feature so it will only automatically hide if the entire sketch is used.
@piszabolcs
Looks like you have Section View activated. Button is in the bottom left corner.
Ohh, it is true. Now i see everything. TBH i was chacked this but if i move my cursor to that icon it was say Section View is “OFF” and i didnt click on that, now i clicked ON and OFF and now works well. Thank you! 
What if you extrude all faces, move the bodies aside, and then want to extrude an additional set at a different length?
Previously you could do that. Now you have an added step to go unhide it, because the program is now set to believe you must be done with it if all faces have been extruded.
I guess you’d have to either unhide it or you could copy and paste the sketch.
I’m not sure why it was implemented in the first place to be honest (or how it made it through beta testing) but I suppose it’s now better than what it was. I can only presume that it was a requested feature somewhere.
It reminds me of the development of Evernote; which has lost sight of its heritage as an excellent and straightforward note-taking app into a jack of all trades to the point of requiring too much input to tell it what you want to do.
There is a certain point where more features or interventions necessary actually makes the program worse. I really hope the intuitiveness of this wonderful program is not lost.
There’s nothing intuitive about drawing something and then having it disappear when it’s never been that way for years and years. Is there another app or set of apps that does it this way? Perhaps. And that was just one more thing that drew me toward this and now frustrates to no end.
It’s not that it’s not intuitive, it’s that the user (specifically those who never requested these features and probably avoided overly complex cad programs to begin with) are now told to change the way they use the program now vs how they’ve used it for the past few years.
