Using AutoCAD LT2010
From Paper Space:
1. I double-click inside a viewport to make active.
2. At command line i type "layer", which brings up the Layers Property Manager window
3. I highlight a layer named "Hatch_21", then scroll over to the "VP Freeze" column and the icon shows the "snowflake", meaning that layer is not visible in the current viewport(which it is not).
4.If I then go up to the Layer Panel on the Ribbon, click the down arrow to show the layers list, the current viewport freeze/thaw icon next to "Hatch_21" shows up as a "sun" instead of a "snowflake".
5. If I close AutoCAD completely, then restart and open up the same drawing, the icon from the Layer Panel is now correct and shows as a "snowflake".
6. This seems to happen only with drawings that were created LT 2009 or earlier.
Anybody have a guess as how to fix this issue?