Hello Sayali an guys,
I have got similar problems specially with copying Private channels. Maybe I am wrong but I could not find any word about "copying private channels is not supported" in the documentation... And I suppose, after huge troubleshoting, that it is not supported... Am I right Sayali? Also customizing the "mailNickname": attribute is ignored (by the way this problem is unfixed >3 years) and the mailNickname is created from display name instead... My question is what is this cloning environment for, when it does not work as it should? And when I try to use team template disaster, it also corrupt private channel - it change channel to standard and does not create channel site as bonus without possibility to change channel privacy... Somebody should fix this paid mess at last please... Thanks