Hi,
I just updated Moodle from version 3.6.2 to version 3.8.3. After this I have had enough incnvenentes but one of these is that trying to send a message to all users of the platform from massive user actions. After selecting all the users and copying the message, he goes to the screen to see what the message looks like before sending it and my platform is blocked, it keeps loading and never ends, and it is very rare because this only happens to me in the Google Chrome browser, but not in Mozilla Firefox.