Messages no longer automatically download

I have been using eM Client fir years without issue. However, the client no longer shows my emails in the preview window unless I download each one manually. Any reason why?

sábado 03 octubre 2020 :: 1347hrs (UTC +01:00)

Hi @karbs

You don’t say which version of eMC you are running, however, the first thing to do is to
check the layout of your message window here:
(in version 8 top left) ->Menu ->Settings ->Appearance ->Confirm that->
Message panel off is NOT selected ->If it is make a different choice ->Apply ->OK

¡Saludos desde la soleada España!