Sponsor of the Day:
Jerkmate
https://wpml.org/errata/fatal-error-collation-utf8_general_ci-is-not-valid-for-character-set-utf8mb4/
Fatal error: COLLATION 'utf8_general_ci' is not valid for CHARACTER SET 'utf8mb4' - WPML
Feb 26, 2019 - This fatal error is occurring on the first install of WPML (with version 4.2.2) when there are differences in the charset of some tables. This problem has
fatal errorcharacter setcollationutf8general
https://jira.mariadb.org/browse/MDEV-37786
[MDEV-37786] my_convert randomly crashes when converting from utf8mb3 to utf8mb4 - Jira
mdevconvertrandomlycrashesutf8mb4
https://bbpress.org/forums/topic-tag/utf8mb4/
Topic Tag: utf8mb4 ยท bbPress.org
Forums, made the WordPress way
topic tagutf8mb4bbpress