Unit input/distance

I cannot input any unit for distance except feet. For example, if i want to offset a curve 6", i have to type .5 … it will return “unknown command” if i type in 6" for distance. It wont accept anything other than feet.

I dont know if I pressed a button or something but it didn’t used to be this way so I know something is off. I cannot figure it out.

Thanks in advance for all help!

Does 6in work (no space between “6” and “in”)? Make sure the unit type follow the numerical value without a space.