As well as the Firefox solution using v25.x of NPAPI flash player and 'Precision' workaround. I also note that uninstalling Windows update KB4022730 (on Windows 10) reverts IE11's and Edge's flash player to v22.0.0.0209. This also appears to workaround the issue (although I accept that it may not be desirable to go back to such an early version of the flash player for many).
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