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Symbols

1 - I have no problems with Firefox on a Windows 10 PC, version "119.0".
Is your browser version up to date?
2 - Have you installed any browser extensions which might interfere with the page download?
3 - Have you tried a different browser?

It’s an iMac. Doesn’t happen on mobile app or when I use Safari. Version is up to date. Opened in “safe” mode and still doesn’t get rid of problem. I didn’t knowingly ad any extension

The icons of taken pieces are only letters. Instead of showing the font of pieces.
That depends on settings.
Starting a few days ago, symbols I don't understand showed up on my pages. For example, in game analysis, instead of "<" to go to previous move, there is a "#". I'd appreciate any info on how to get back to the original settings. These aren't showing up on mobile app.