You may have tried using Moments with FACEIT or ESEA and have ran into issues capturing. SteelSeries Moments actually works these platforms but first you need to follow a few steps.
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- Go to Settings → Game Detection
- Find Counter Strike: Global Offensive
- Turn the capture mode to "auto" instead of "screen capture"
Note: If you play Valve matchmaking with "Auto" on, it could theoretically lower your trust factor. We would suggest changing your capture mode back to "screen capture" if you decide to play matchmaking.
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After these steps, your Moments should capture correctly. If you run into any further issues feel free to open a ticket at https://support.steelseries.com/hc/en-us