Reports

Blacklisted phrase (1): I have the same problem
Long answer (-0.5):
Has code block (-0.5):
Me too answer (2.5): I have the same problem
Low reputation (0.5):

I have the same problem using the newest version from today, 12.1.1. 12.1.0 works without problems.

It seems to be related to detecting the language of the page:

highcharts.js:8 Uncaught TypeError: Cannot read properties of null (reading 'closest')
    at highcharts.js:8:898
    at highcharts.js:8:1778
    at highcharts.js:9:272787
    at highcharts.js:8:324
    at highcharts.js:8:329

This is this line in the highcharts code:

   t.pageLang = t.doc?.body.closest("[lang]")?.lang,

Updating production code on a friday is risky.. and now just before the Christmas holidays.

79298316