This is most likely a browser issue, and how browsers are handling Flash click-to-play. Does the content display correctly if the SWF is wrapped in an HTML document, where the browser can detect Flash content and prompt you to enable Flash? See Why do I have to click to activate plugins? | Firefox Help for assistance.
i have the same issue, been working on the website www.pizzaexpress.com.my and its showing white Had to remove it. what is the solution or how do I ask this question to an expert?
When I opened the file in the website it prompted me to enable flash (where the dialogue box pops up to the left of the url), and while I was uninstalling and reinstalling flash I tried accessing the site without it and it wouldn't open at all, it just directed me to the flash download page.
I'm having a similar issue at the web site KENKEN Puzzles - NYTimes.com
Text in the game is either white or invisible, except when the cursor is over a particular section.
I am running Firefox 57.0, Flash NPAPI Plug-in version 188.8.131.52, under Windows 7 SP1.
I have tried clearing the browser cache, deleting the Flash site data and settings, and deleting the cache folders (and then restarting the browser).
The game runs correctly on a second computer with the same software.
Update: I fixed my issue by uninstalling Flash, rebooting (which may have been overkill), and reinstalling the latest Flash.
"When in doubt, reboot" is still sage advice in 2017.
Glad this worked out for you.