Unable to add group member to group

[Naveenkumap7698]

while adding the group member, system is throwing 
Job to add or remove role(s) from user(s) of group has been queued?
why?

[GlideFather]

Hi @Naveenkumap7698,

can you also show the error? 

Also, what role do you have? Does it happen for all (or more) groups or just this?