Hello, long time user but first poster here...
I wanted to report the latest version of CCleaner is not cleaning any cookies in the latest version of Chrome. History is removed just fine, though. This looks like a similar issue that we saw a month or so ago. I first noticed this when returning to YouTube after running CCleaner and seeing my volume for videos was still set the same (instead of being set the whole way up as it does with no cache). I then went into my cookie settings within Chrome, and there were thousands of cookies still present. Oddly enough, I still have to re-log back into websites after running CCleaner, yet all cookies are still present in the Chrome cache. Youtube for example, remembers my volume settings, but I still have to log back in.
I've been able to replicate this same problem across 2 different computers and operating systems. I also have the "Continue running background apps" disabled, and I am not signed in to Chrome with my Google account on either PC.
Here are my specs:
Chrome v. 61.0.3163.91 - 64 bit
CCleaner v. 5.34.6207
Windows 10 Pro v.1703 64 bit
Other PC is Windows 7 SP2 32 bit. Chrome and CCleaner versions are the same as above but 32 bit.
I'm happy to provide any other additional info.
Thanks very much
EDIT: I wanted to add that I tested reverting back to the previous 2 versions of CCleaner (533 and 532) testing each one at a time and the results are the same across different PCs. Cookie problem seems to be the result of recent Chrome updates.