Can not change scale in viewport

[Anonymous]

Hi, 

There's either some kind of bug or I'm just not figuring this out.

I can't seem to change scales in view-ports!

the place to click to select it is grayed out and doesn't allow to press on it.

In the view-port properties, it allows me to press on it, but automatically changes back to what it was...

It works to change the scale by zooming inn or out, but that's not precise and inconvenient.

Some times it fixes itself if I change visual styles back and forth or if I change another random setting back and forth.

Anyone else have this issue? I can't seem to find any forum with this exact problem.

Autocad 2018 version.
PC - Windows 7

Greetings
Bob

[imadHabash]

can you share a CAD drawing sample ( your drawing ) with us for testing please ?

[Anonymous]

Sure!

Here it is,

This happens to 80% of all new drawings... 

Seems random if it works or not

[imadHabash · Accepted solution]

it's a UCS problem .... while you're in your VP make your ucs to world as the follow : 

Command: UCS
Current ucs name: *WORLD*
Specify origin of UCS or [Face/NAmed/OBject/Previous/View/World/X/Y/Z/ZAxis] <World>: w
Command: PLAN

Enter an option [Current ucs/Ucs/World] <Current>: press double enter

Then go out from VP to find that your scale is NOT grey out .

[Anonymous]

Hei!

it works!

Can you explain what why that is?

this bug seem to appear even when I start from original autocad templates, and sometimes it doesn't happen.

[shildebrand3NLK9]

i am having the same issue, an explanation of this solution is need as it sits it makes zero sense from my point of view.