I upgraded to 10.3 from 10.2. I tried to SAVE a symbol but the SAVE AS button is grayed out, rendering saving as not possible. I've tried rebooting, re-opening the mxd... What solutions are available?
You'll need to check your
username.style file to see if you have write access to it, or if it's even there.
By default, it's under:
You can also go to
Customize -> Style Manager to see if your
.style file is referenced properly.
ESRI has a support article for this issue: Problem: Unable to save customized symbols in the Symbol Selector. The first solution (renaming the Normal template) worked for me.