LoL Replay BUG

Anyone have this BUG : when i start recording my replay , after 2-3 minutes this window was popup on my desktop and recording replay is cancelled ... i conctated Riot Supp , but i dont understand what to do

We're testing a new feature that gives the option to view discussion comments in chronological order. Some testers have pointed out situations in which they feel a linear view could be helpful, so we'd like see how you guys make use of it.

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