Board Thread:Support Requests - Getting Technical/@comment-3175093-20190520065248/@comment-27958705-20190520130424

do you really need those giant tooltips? you have hit template post-expand size limit (which is 2mb).

if you do need such big tooltips, then i'd suggest to move tooltip data to another page (probably lua module), and use the parse tooltip.js functionality to request data from the template\module (which will be smth like t|data|page|whichdatatorender, or #invoke:module|page|whichdatatorender in case of lua module).