Issue with cinnamon scrolls

[Baker13]

Hi,
Around 5 years I am doing the same recipe of cinnamon scrolls and they were always good but now suddenly they are not rolled properly. I don't know what it is for. The unique ingredient looks different is the cinnamon that my supplier told me has more percentage of oil but I don't know what can I do for sorting the issue. Someone can help me, please ?

 

[abhirabballa]

I will DEFINITELY be trying out this magical tangzhong everyone is talking about. And our oven is a bit of a scorcher, so I do usually set the heat lower or cook for shorter times in the recipes. Maybe I'm not going low enough?