Console in Chrome Devtools doesn't clear on refresh after update 68

Turns out the issue was an extention: "adBlocker Plus". I'm surprised I couldn't find many complaints about this issue.

I tested it about a dozen times. Disabling the extention fixes the problem.

I've had too many issues with AdBlock Plus in the past, so I'm switching to uBlock going forward. The same custom filters work, and it actually runs a little faster, too. :D