What is the large white on black number that appears when Netflix loads sometimes?

Forgive me for asking in this forum but I figured if anyone knows the answer, its the webos developer community… LG C1, often when switching from YouTube to Netflix a large number from 1 to 9 appears on the screen. I’m not sure if this is a webos thing or a netflix thing?

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Thanks yeah I’m not sure where the issue is… It’s obviously somewhere between webos and Netflix on my lg tv, im not aware of the different layers in between… there may be a hardware layer below webos that the app is calling? Netflix uses a common ui framework i think? Might be that? So yeah fair call its likely many layers that sent really LG related … Was just curious i assumed there’s a good chance someone in the community will look at that number and go “oh that’s an artefact from [such and such] library!”