Please always state exact versions when reporting bugs, I am assuming you mean the latest stable 6.2?
BTW, as 6 is LTS, I’d be going straight to 7.0 myself, otherwise you’re just battling tech debt ( LTS means maintenance mode ) and missing out on all the new stuff, modern extensions, native step debugger and the easy upgrade path to the faster 7.1 coming up soon
and if you are using ORM, this should really make your life easier