Math Processing Error: Solve the Mystery

[Merlin3189]

Anyone recognise this problem?
When looking at posts with (presumably) Latex formulae, I get [Math Processing Error] instead of the formula.
It looks like everyone else can read them ok and even stranger, I sometimes see the formula for a brief moment before it is replaced by the message. What I'm seeing is the rendered formula, not the raw Latex.
I suppose it must be some setting I've inadvertently altered, but what is it ?
I'm using Chrome and Windows 10 Pro on a 32bit HP.

 

[Greg Bernhardt]

Specific posts or any post with latex? Are you blocking any javascript or have strict firewall settings?

 

[Merlin3189]

Thanks. Seems to be all posts. I'll check the Javascript - sounds a distinct possiblity.

 

[Tom.G]

At least we are not alone. I too am seeing the raw latex, lots of ##, etc. Been happening for ? months. JAVA is turned ON, many sites won't work at all when OFF. There seems to have been a change somewhere related to PF. I recently had a problem with an "Untrusted Site" that hosted some required file for showing icons, now this. (Old browser here.)

 

[Merlin3189]

For now I've done what I should have thought of first, use a different browser. So I'm seeing things ok in Firefox at the moment.

In Chrome I checked Javascript was enabled, but Flash was not. Popups were also blocked. Enabling these didn't help immediately, nor after restarting Chrome, so I'll reboot the whole thing and see if it's made any difference.
(Sleep intervened.)
Even after a full reboot with everything unblocked, Chrome is still giving the error. FFox is ok.

 

[mfb]

The LaTeX formulas have nothing to do with Flash or popups, they are purely based on JavaScript.
Did you clear the cache?

 

[Merlin3189]

Thanks for that. When Javascript was already enabled, I turned the Flash & popups back on as they were the only things turned off!

Clear the cache? Well, I'll have to look at what that might be.
And sure enough Chrome has a cache for files and images. When cleared, formulae fine.

Thank you mfb.

Now, if I can find out how to do it, I'll thank you and mark it solved.