When a user who does not have permission to view private notes looks at an issue with one or more of them, the page takes a long time to load and when it does eventually load, the page is only rendered up to the section before notes. No notes are shown (even public ones), no add note section, issue history section, or footer is shown.

Also, there are errors generated in the Apache logs:
PHP Fatal error: Maximum execution time of 30 seconds exceeded in C:\Program Files\Apache\htdocs\mantis\core\lang_api.php on line 182, referer: http://glkas0880v:8080/mantis/view.php?id=1094
PHP Fatal error: Maximum execution time of 30 seconds exceeded in C:\Program Files\Apache\htdocs\mantis\core\bugnote_api.php on line 357, referer: http://glkas0880v:8080/mantis/view.php?id=1094
PHP Fatal error: Maximum execution time of 30 seconds exceeded in C:\Program Files\Apache\htdocs\mantis\core\user_pref_api.php on line 133, referer: http://glkas0880v:8080/mantis/view.php?id=1094
PHP Fatal error: Maximum execution time of 30 seconds exceeded in C:\Program Files\Apache\htdocs\mantis\core\config_api.php on line 61, referer: http://glkas0880v:8080/mantis/view.php?id=1094