People won’t always tell you what they really think of your change even when you ask them, “Please tell me what you really think of my change.”
There are piles of reasons why someone could think/feel/believe it is right for them to not be honest with you.
You can’t change their thinking/feeling/believing by wishing they didn’t think, feel or believe that way.
All you can do is act on the information you get, be as upfront with your goal and your methods as possible (strong meeting minutes and frequent communication with stakeholders helps), and keep a smile on your face no matter what.
Driving change isn’t easy, but it’s worth it.
Keep smiling and keeping trying to drive change.
If you don’t, who will?