The admin user changes customer group to one which has catalog price rules applied. Change is not visible in frontend until customer logs out and logs in again.
It works when the customer logs out and logs in again.
Internal ticket MAGETWO-70238 was created.
@wojtekn, thank you for your report.
We've created internal ticket(s) MAGETWO-70238 to track progress on the issue.
@wojtekn, thank you for your report.
Unfortunately, we are archiving this ticket now as it did not get much attention from both Magento Community and Core developers for an extended period. This is done in an effort to create a quality, community-driven backlog which will allow us to allocate the required attention more easily.
You may learn more about this initiative following this link.
Please feel free to comment or reopen the ticket if you think it should be reviewed once more. Thank you for collaboration.