It seems like I'm having the same issue with you. I'm using chatGPT to look through the problem. As my laptop previously running SEB ver 3.08 fine, so it seems like the update from WebView to CEF 139 ...

I've created a SEB config file to load it in a Moodle Quiz. There's an error message in Moodle that refuses the file with the following message : The uploaded file ...

CBT・IBT試験等の試験運営業務をメイン事業とする株式会社CBTソリューションズ（本社：東京都千代田区、代表取締役社長：野口功司）は、この度、自宅などで受験するIBT（Internet Based Testing）試験の不正行為を防止するため、専用Webブラウザ「Safe Exam Browser（以下SEB）」への対応を、2026年2月より開始します。

Safe Exam Browser (SEB) is a secure web browser environment that allows you to conduct electronic exams safely. It controls access to system functions, other websites, and applications, preventing ...