Why Adobe XD UI-controls are not visible and not accesible sometimes?

It is case when I opened a new window. Similar problem was in normal workflow - some sontrols just become invisible or change own state, I don't know why.
And second problem that I face frequently is Adobe XD close all windows when I am just working. And that cases stress and bored and knock off the working spirit.
So guy's, solve the optimization problem with adobe xd app. I think, this is happens when operative memory is not enough.
When it happened I send reports through special windows after app crashes and you must get them.
Thank you for you work. I like your app and I will use them again, but this cases hurt me and upset me. I hope you will solve this problems.
