Is the new tab page randomly popping out the known issue?

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Hi,
please only use the available Edge insider versions from here: https://www.microsoftedgeinsider.com/en-us/download

there is currently no stable version. it's set to be released some time at the end of 2020.
the "Leaked" version that is available in the wild is a homebrew custom version made by someone else and he/she calls it "stable". I would advice against using it as it poses serious security problems and it can't be trusted.
for the same reason it's not supported to be fixed.
that version 77.0.235.9 is months old. the latest version right now is 78.0.256.0.
if you want to test out the new Edge insider i suggest you start with the Canary or Dev.