Mine is nearly 6 months and can roll back to one side and that’s it! Still time!
My boy rolls, but has only become more frequent over the last few weeks. He's 5 and half months old. We bought a big play mat and put lots of different toys on it to encourage him to roll. He rolls only one direction bless him. I wouldn't worry. Every baby is different. She will figure it out again.
My Lo is 5 and a half months and doesn't roll yet. She's rolled a few times front to back but that's it not regularly x
Mine is same. She is turning 6 months this week.