Symptoms
After you install the January 2019 Cumulative Update for Microsoft Skype for Business Server 2015, the UCWA clients (Skype for Business on Mac and Skype for Business for iOS) show the "Rate my Call" window randomly after a user ends a call. This scenario isn't expected because the value for the RateMyCallDisplayPercentage setting is set to 0 and the RateMyCallAllowCustomUserFeedback parameter is set to False in client policies.
This issue also occurs in Skype for Business Server 2019.
Resolution
To fix this issue, install one of the following updates:
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For Skype for Business Server 2019, install the December 2019 cumulative update 7.0.2046.151 for Skype for Business Server 2019, Web Components Server.
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For Skype for Business Server 2015, install the July 2019 cumulative update 6.0.9319.559 for Skype for Business Server 2015, Web Components Server.
