Hi Jesus,
We regret for the inconvenience caused. I have tested this issue and it seems to be bug in XPMenus. I have logged a bug report # 2183 in this regard.You can track the progress of this link below:
Defect # 2183 - Shortcut gets triggered for disabled barItem in XPToolBar
We have fixed this issue internally in our latest source. If you need a separate custom assembly including this fix, please create a new Direct Trac incident and let us know the Essential Studio version and .Net Framework, which you are currently using.
Thank you,
J.Nagaraj