UserAgent: Mozilla/5.0 (Windows NT 6.3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.139 Safari/537.36

Example URL:

Steps to reproduce the problem:
1. Visit Walmart.com
2. Visit the Chrome new feature in the developers area
3. Occurs on numerous web sites with various content

What is the expected behavior?
I do not expect black boxes to appear and begin jumping around all over the screen, that's for sure. -- I expect a stable version of chrome with the problem causing this issue having been resolved.

What went wrong?
Black boxes appear and jump all over the screen! This question appears redundant in light of the *'Please enter a one line summary' at the beginning of this log file. :/

Does it occur on multiple sites: N/A

Is it a problem with a plugin? N/A 

Did this work before? Yes Has occurred previous two or three releases concurrently

Does this work in other browsers? N/A

Chrome version: 66.0.3359.139  Channel: stable
OS Version: 8.1 Professional
Flash Version: PPAPI Plug-In Version: 29.0.0.171

Having already uninstalled Google Chrome several times now, I'm nearing the point of settling for another product altogether (Firefox, Opera, even IE Explorer 11)!

Same issue with last two or three releases of Google Chrome. On numerous web sites, black boxes that jump around all the screen begin appearing (wreaking havoc with browsing the web page in question) about mid page. Once started nothing will stop then from reappearing (not refreshing the page, not closing the page and reopening the page, not closing the chrome browser and reopening the browser to the same page (not even after clearing, cleaning all settings and browser history from prior sessions.

Really beginning to be a major source of irritation. have tried without any extensions as well, and issue continues to persist.

Repeat: this issue (still unresolved) only began on my system within the last two or three new releases. You'd think (I'd think, anyway) this issue would have been resolved by now, but perusing the issue reflects otherwise, an not just with Windows 8.1 Professional, its been reported on Windows 7 as well (by another individual(s), (I did not scroll through the entire list counting the number of times this issue is occurring but the instances are quite numerous!