layout grid and layout grid lock greyed out

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Second day working with Fusion 360. Day 1 for most of the time Grids were visible and usable. Then something happened. Under Grid & Snaps, Layout Grid, and Layout Grid Lock check boxes are grayed out. Yes, the Sketch Grid is checked and usable. Frustrated (not the wording my wife would use), I concluded the day defeated with no solution to be found even online.

Day 2 began with more of the same. I decided to uninstall Fusion 360 with the hope that reinstalling would reset things to default thinking of the possibility that I had inadvertently checked or unchecked some obscure setting. No such luck.

At first, although grayed out, Layout Grid Lock was checked, however, Layout Grid was unchecked. After looking at Grid & Snaps under other than Design workspace, I found Lock active & not grayed, I believe under Manufacture. I unchecked it. Returning to Design, Lock is now unchecked on all planes, but still grayed out. No difference with Layout Grid.

I have read many articles which at first seem to reflect this same issue but then fade into something different.

To compound the situation, the Z plane has also disappeared. Expanding the view multiple times, only the X and Y planes exist. Clicking on each on the Cube will bring the view to each of those 2, but Z does nothing.

Its seems that as I progress more things are happening. Could be my paranoia. Is there a proper solution? Did I do something stupid?

[jeff_strater · Accepted solution]

You are in sketch mode - actively editing a sketch - you cannot adjust the layout grid while in sketch mode.  Exit sketch and you will be able to change the layout grid again.  What you are seeing now is the sketch grid, not the layout grid.

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Thank you very much.