Dimension tick marks disappering (pos7i7)

For some reason the tick marks on my dimensions are invisible, no
matter what I set the size to. When I'm drawing the dimension, I see
the tick marks flash for a second, but as soon as I complete the
command they are gone. If I change the "arrow type" to arrows, I get
a blank space at the end of the dimension line instead of the arrow.
I tried importing a dimstyle from another drawing where it had worked
perfectly, and when I used it in the new drawing, same story,
invisible tick marks. Is there some setting I'm unaware of that
controls this? Any advice would be appreciated.

pos7i7

 

Is layer 0 of or frozen?

Generally when something like happens it is realted to some problem with the
block that is used for that dimension style ending by AutoCAD. As the block
is already in the drawing, any new dims will just use this block rather than
redefining it.

Try exploding the dims & see if the end appears, & if you can refedit it.
Try wblocking all the dimsout to a different file, purge your drawing &
insert a new dim from scratch with the same style name, before bring back
the old dims.

Matthew

 

Try changing the on-screen background colour and see it it makes a
difference.

John B

johnbogie btinternet.com
Put the "at" in the gap.

 

Thank you VERY much to everyone who commented on my disappearing
tickmark problem. I didn't understand tickmarks were blocks. I
discovered that my tickmark block had somehow been changed to a layer
I had been trying unsuccessfully to purge . . . was able to refedit it
back to layer 0, and voila! Everything was transformed. Never would
have figured it out on my own. Thanks so much everyone for sharing
your expertise!