Foliage disappears now and then in 4.15

Foliage disappears and appear again, while rendering in sequencer in 4.15. This never happens in 4.14 with the same map. I migrated from 4.14 to 4.15 and it starts to happen.

If you create a new project and map in 4.15, can you get the same bug to occur? Sometimes migrating projects cause bugs to show up that otherwise don’t occur.