Transform Camera goes NaN Everytime

[Anonymous]

Hi. I saw couple of posts that having the same problem. but mine is different.

Every time i create/load a scene , when i press F it goes blank and NaN.

I have no object and Even if I create a new scene and hit F it goes blank.

I know how to reset the camera, but I need F button. so how to fix this?

Thank you

have a nice day

[Anonymous · Accepted solution]

I don't know what was the problem exactly but I found a solution.

Delete prefs completely and run maya again.It will fix it 

[Anonymous]

Not a solution. When you have highly customised preferences you can't just chuck them.

[tkaap2]

If you don't want to delete your prefs, try setting your defaultFitFactor pref to 0.95.  
https://forums.autodesk.com/t5/maya-forum/focus-is-not-working/td-p/7670571

optionVar -fv defaultFitFactor .95;