Duplicate of [MCPE-109870] Title screen showing no options - 'Play', 'Settings', & 'Marketplace' buttons not visible - Jira (mojang.com)
Same issue here:
Using the latest and greatest Radeon software:
Erik Buit
Duplicate of [MCPE-109870] Title screen showing no options - 'Play', 'Settings', & 'Marketplace' buttons not visible - Jira (mojang.com)