When I'm in a meeting with several people and I start to ask a question, my boss usually interrupts me when I'm about 70% done asking my question/providing context. When she interrupts, she typically dismisses what I'm saying and then responds to the part that I've said, not the actual question that I have at the end. She then continues talking for several minutes and then apologizes to everyone for her talking too much and then changes the course of the conversation leaving my question unanswered or leaving the impression that I meant what she responded to.
Typically, my questions are about things like the length of a test to increase sales of our product and I ask questions like "How are we going to monitor this test at shorter intervals to see if we need to pivot?". Unless the "decision" that's being made is highly dependent on technical issues that I raise, I usually save all detailed technical questions for separate meetings.
There are other small patterns that I've noticed such as she typically only does this when marketing/sales people are on the meeting.
I've tried making the questions/providing context as short as possible, asked "Excuse me, can I finish my question?", and tried also explaining that the point I was trying to make has been missed. I'm a (remote) VP in a technical role at this company, she's the CEO. From what I've seen, she doesn't do this to other people.
What can I do so that my boss allows me to finish my point before responding and I stop feeling like I'm going crazy?