Aligned apparent intersection not working

[Anonymous]

This may have been asked before but I'm not sure what the function is called so I will try my best to explain it.

I am on AutoCad 2019 on an MSI Laptop. 

When drawing a line I used to be able to hover over an existing point, once the snap is shown I drag the mouse over and type in 6" (for example), and the beginning of my line starts 6" from the established point, then I can carry on with the rest of my line work. 
My hang up is when I type in 6" and hit enter, the start of the line picks a random spot, sometimes even picking different random spots upon repeated tries of the same starting point and same dimension input. 

This use to work, now it does this. What am I doing wrong? 

Edit: Ok so after messing around a bit, I have found that if I type 6" (again, for example), and do not move the mouse, the extension line created goes away and picks a seemingly random spot. I then have to, after typing in the dimension, start the process over again and hover over the existing point and drag in direction I want, then hit enter.

So My question has changed slightly, 

Why is it doing this now?

[user181]

Maybe you need to turn on Object Snap tracking. Press F11 to turn it on and off

[imadHabash]

you may need to check your Autosnap ( F11 ) .

[Anonymous]

I have the correct Osnaps on. It still does it. I have edited my post to reflect what I have found out since posting this. I know how to remedy in the short term I guess but I still would like to know why it is seemingly messing up?

[user181]

You need to drag the line in a certain direction first before entering the number, otherwise it doesn't know if you want 6" to the left, right, up or down. 

[imadHabash · Accepted solution]

if you turn off your Dynamic Input [ F12 ] , any changes ? 

[cadffm]

1. Is your commandline Docked? [CTRl+9]

   Docked => Real docked comm,andlines going from the left to the right over the full range.

2. Make sure your OSNAPCOORD is not set to 0 (best value is 1), 2 is default

[Anonymous]

Somehow, this worked. I turned this off a while ago because it slows down how quickly I can draw a bit. 

Thanks!