It was noticed along the web and I’ve experienced this myself.
After updating Adobe Flash Player to 188.8.131.52 I couldn’t connect to vSphere Web Client (Flash version) with Google Chrome or Opera browsers.
You would get an “Shockwave Flash crash” similar to the one below:
Well, recently Adobe launched an update to Adobe Flash Player (184.108.40.206) that solves the issue.
You may also experience the same issue with Microsoft Edge. The new update that solves this issue.
Just run Windows Update or download the KB4049179 directly from Microsoft Update Catalog.