flash player stopped drawing screen.

When you watch live on the Sports page and scroll down the screen, the player area moves down to the bottom of the right screen. At this time, the screen stops drawing (audio plays continuously)

safari, firefox is fine, but chrome only has problem.

https://sports.media.daum.net/sports/worldbaseball

https://sports.media.daum.net/sports/gamecenter/80014817/cast

OS: Mac OS Sierra (ver 10.12.6)

browser: chrome 68.0.3440.106

adobe flash player 30.0.0.154

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[Comments is to ask about the operation of the Forum, not a specific program]

[Moved from the Comments forum to the specific Program forum... Mod]