I've encountered this problem a few days ago when I bought the dual talent tree on my Death Knight.
I wanted to use Glyph of Disease in both talent specs, yet I seen an error message when trying to bind it to the spec it wasn't bound on.
I plaed on Retail back then and I rmemeber binding Glyph of Judgement on both of my pages without any problem.
Also I checked wowwikki and it mentions nothing about not being able to use the saem type of glyph on different pages: http://wowwiki.wikia.com/wiki/Dual_Talent_Specialization
Here is a video of the issue: https://youtu.be/GtFe_TwQ1Mg
It is obvious I was trying to activate it on a different page, the one tha twas active in that moment.
To be honest I am not sure if it is a bug of the glyphs since it says nowere that they are unique or if it si a bug of dual talent specialisation or a problem of the rune pages.
Thank you for your timr
Looking forward for an answer
Edit: It seems to be functioning now. Sorry for wasting your time!
I've encountered this problem a few days ago when I bought the dual talent tree on my Death Knight. I wanted to use Glyph of Disease in both talent specs, yet I seen an error message when trying to bind it to the spec it wasn't bound on.
I plaed on Retail back then and I rmemeber binding Glyph of Judgement on both of my pages without any problem. Also I checked wowwikki and it mentions nothing about not being able to use the saem type of glyph on different pages: http://wowwiki.wikia.com/wiki/Dual_Talent_Specialization
Here is a video of the issue: https://youtu.be/GtFe_TwQ1Mg It is obvious I was trying to activate it on a different page, the one tha twas active in that moment.
To be honest I am not sure if it is a bug of the glyphs since it says nowere that they are unique or if it si a bug of dual talent specialisation or a problem of the rune pages.
Thank you for your timr Looking forward for an answer
Edit: It seems to be functioning now. Sorry for wasting your time!