It's certainly not working for everyone. After getting a new CSP, I lost the ability to link that card in my Chase Ink Cash's UR portal, and have had to call Chase each time to transfer points. I called support today and was escalated to somebody who said that they are aware of an issue with combining points, but have no timeframe for resolution. I'll give them another month, then I'll simply cut my losses and replace the Ink Cash with a Citi Custom Cash.