Because of what is not visible elements of design android studio?

Why can't otobrazhatsya elements ?

And when I start everything is normal

June 3rd 19 at 19:09
3 answers
June 3rd 19 at 19:11
Appears but then rasplyueva. What can be the reason? - Brian commented on June 3rd 19 at 19:14
June 3rd 19 at 19:13
Try to replace library support:design (in build.gradle Module: app) to the version below.
For example, I helped replace
implementation ''
implementation ''
Rasplyueva shows - Brian commented on June 3rd 19 at 19:16
June 3rd 19 at 19:15
The difference API versions probably try to lay on it and show that there is:

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