Editing to Retract this post... you did fix that issue (and the visibility was change is there, it was just too subtle for me to notice it at first on my monitor).
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While you're at it... the disjoin option doesn't change appearance when selected so you don't know if it's enabled or disabled.
In addition to that (and this has been a long standing issue that has never been addressed), when rotating some entities the disjoin option isn't appropriate so the button is disabled (rotating a model pattern for a ceiling grid for example). The problem with this is that, if disjoin was selected the last time the tool was used then that setting remains, which is invalid for rotating that element, and the element does not get rotated.
The only solution is to draw something, rotate it (making sure to toggle disjoin off), then going back and rotating the grid. It would be more appropriate for the tool to temporarily disable the disjoin option (in addition to disabling the button) until the command has been completed, then resetting it to whatever it was before starting the command.
-G
Gary J. Orr
GaryOrrMBI (MBI Companies 2014-Current)
aka (past user names):
Gary_J_Orr (GOMO Stuff 2008-2014);
OrrG (Forum Studio 2005-2008);
Gary J. Orr (LHB Inc 2002-2005);
Orr, Gary J. (Gossen Livingston 1997-2002)