When the year changes there comes a different layout.
It looks to me, that now again the default value is adopted.
see pictures.

Dear Gjalt,

Please give us a link (to [email protected]) to your site and temporary admin user account, and we will try to find out the problem as soon as possible.

Best regards
Web-Dorado team

Indeed the cell size is determined by the text used.
It can therefore vary.
Topic can closed.