WoWInterface - Pet Bar Extended

i added Mend Pet and Eyes of the Beast into two of the added petbar buttons, and put nothing into the petaway buttons

the problem is, i use the /pbe grid command to hide the empty buttons, but after I call/rez my pet (after the petbar has disappeared) the Mend Pet/EotB buttons no longer show up next to the petbar

i have to use the /pbe grid command again to see all the buttons for them to show up, this also means i see the empty buttons as well

not sure if this is a bug in this, or a conflict with other addons, but after turning on 'Always Show Action Bars' in the Interface menu and disabling 'Hide Button Grid' with CT_Mod the problem persisted

any ideas?