Desktop Waveform not showing

My waveforms have just stopped showing on my laptop when playing any tracks. They show as soon as I stop the track.

I have read a few topics dated back to 2019 about waveforms not showing when playing tracks but no solution was found other than the tracks show waveforms in audacity.

I can not post tracks to test as I can’t use this forum on my laptop because I run windows 8.1. It doesn’t load any JavaScript to login an tells me my browsers are unsupported.

Does anyone know how I can fix this ?