Hello @rudiansyah, thank you for this report. Reproducing this on my device is impossible because of the device version i am using (7.0).

The video you provided lack in clarity. While looking at the video, i observed that those two button are actually functioning just that the stamp or sign is missing. This report is however counted as a cosmetic report and can not be rewarded by utopian.

Please note that device version lower than 6.0 will no longer be accepted on utopian as a valid bug report. This means that, you must only report bug with devices that is 6.0 and above.
Thank you for your report once again.

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