After I made a world with flat and experimental settings on the latest release, my creative inventory tabs keep invisible or it cannot even interact with it. Its very annoying searching all blocks and items in search tab. The decoration tab, nature tab, construction tab and weapons tab are missing in the creative inventory. I also tried in some new worlds which are also affected by that bug. I am sure that it is not affected due to any resource pack.
Therefore, this bug keep invading my creative inventory and disappearing some tabs.