I can confirm this.
Error_log
PHP message: PHP Fatal error: Uncaught ArgumentCountError: Too few arguments to function EmailManager::listaccounts(), 0 passed in /usr/local/cwpsrv/var/services/user_files/modules/email_accounts/index.php on line 0 and exactly 1 expected in /usr/local/cwpsrv/var/services/user_files/modules/email_accounts/index.php:0
Stack trace:
#0 /usr/local/cwpsrv/var/services/user_files/modules/email_accounts/index.php(0): EmailManager->listaccounts()
#1 /usr/local/cwpsrv/var/services/user_files/modules/email_accounts/index.php(0): EmailManager->addEmailAccount()
#2 /usr/local/cwpsrv/var/services/user_files/modules/email_accounts.php(0): EmailManager->router()
#3 /usr/local/cwpsrv/var/services/users/index.php(0): unknown()
#4 {main}
thrown in /usr/local/cwpsrv/var/services/user_files/modules/email_accounts/index.php on line 0" while reading response header from upstream, client: xxx.xxx.xxx.xxx, server: localhost, request: "POST /cwp_be367d128c2eeff6/srv120/srv120/index.php?module=email_accounts&acc=addemail HTTP/1.1", upstream: "fastcgi://unix:/usr/local/cwp/php71/var/sockets/srv120.sock:", host: "xxx.net:2083", referrer: "https://xxx.net:2083/cwp_be367d128c2eeff6/srv120/?module=email_accounts"