Hmmm - I haven't had the Timon and Pumba problem - they are working okay for me. Maybe wait for the next update? There appears to be an Aladdin update coming soon based on the pop up advertisement in game the other day.
Yes - Mowgli took ages to unlock! I was disappointed that the Alien requires the potions from the cauldron to obtain him. I don't have any of that left as I had bought a few attractions that I'd missed in the past.
DLR: 2005, 2006, 2009, 2011, 2012, 2013, 2015
HKDL: 2006 (Mar & Sept), 2011 (Apr & Dec), 2014
TDR: 2008, 2010, 2017
WDW: 2006, 2013 (Mar & Sept), 2016
DCL: 2013, 2015 (Alaska & Hawaii)