Now and then and not often when i find a Endeavor i do not care for and want to reroll it (having lots of rerolls) click reroll, the popup comes up saying "do you want to reroll this Endeavor" click yes tone plays you hear when rerolling but nothing happens... Endeavor does not change and reroll is not used up... switching chars does not help, exiting the game and restarting does not help either... it may happen more often but its not every day i wish to reroll a Endeavor
most often when i want to reroll it works... today it did not
the Endeavor that i could not reroll was "Defeat 60 Tzenkethi (ground)"
while i know where to go to do this Endeavor... i just do not like it and wanted to reroll and regardless of reason if you have the rerolls you should be able to do so