NO mention of this behavior in the users manual or literature.It's a BUG and NOT an expected feature so why documented in user manual?
IMHO releasing a product with this bug is inexcusable, as is refusing to fix it years after the product has been released.I think they want to fix it but they need to find and then have a solution to the problem.
In general if they can reproduce it, any engineer SHOULD able to fix it. It's possible the bug is NOT high priority with only few complaints so will delay indefinitely.