that’s coz the 6.x snapshots are still super bleeding edge at the moment and have been hidden
what version of the loader are you running? it shows as the minimum version on the admin update page
"INFO","ajp-nio-8009-exec-5","12/26/2020","11:33:42","Update-Engine","Installing Lucee version [5.3.7.45-RC] (previous version was [6.0.0.31-SNAPSHOT])"
"INFO","ajp-nio-8009-exec-5","12/26/2020","11:33:48","controller","no new extension available to add to local extension directory"
"INFO","Thread-133","12/26/2020","11:34:13","controller","no new extension available to add to local extension directory"
"INFO","Thread-133","12/26/2020","11:34:16","loader","Lucee Version [null] installed"
"INFO","Thread-8","12/28/2020","11:27:20","controller","no new extension available to add to local extension directory"
"INFO","Thread-8","12/28/2020","11:27:22","loader","Lucee Version [null] installed"
"INFO","ajp-nio-8009-exec-6","12/28/2020","11:34:37","Update-Engine","Installing Lucee version [5.3.7.47] (previous version was [6.0.0.31-SNAPSHOT])"
"INFO","ajp-nio-8009-exec-6","12/28/2020","11:34:43","controller","no new extension available to add to local extension directory"
"INFO","Thread-45223","12/28/2020","11:35:09","controller","no new extension available to add to local extension directory"
"INFO","Thread-45223","12/28/2020","11:35:11","loader","Lucee Version [null] installed"
"INFO","ajp-nio-8009-exec-1","12/28/2020","11:36:05","controller","no extension to add/install"
"INFO","ajp-nio-8009-exec-4","12/28/2020","11:40:20","Update-Engine","Installing Lucee version [5.3.7.47] (previous version was [6.0.0.31-SNAPSHOT])"
"INFO","ajp-nio-8009-exec-4","12/28/2020","11:40:26","controller","no new extension available to add to local extension directory"
"INFO","Thread-45421","12/28/2020","11:40:51","controller","no new extension available to add to local extension directory"
"INFO","Thread-45421","12/28/2020","11:40:54","loader","Lucee Version [null] installed"
"INFO","ajp-nio-8009-exec-10","12/28/2020","11:41:56","Update-Engine","Installing Lucee version [5.3.7.47] (previous version was [6.0.0.31-SNAPSHOT])"
"INFO","ajp-nio-8009-exec-10","12/28/2020","11:42:03","controller","no new extension available to add to local extension directory"
"INFO","Thread-45503","12/28/2020","11:42:29","controller","no new extension available to add to local extension directory"
"INFO","Thread-45503","12/28/2020","11:42:32","loader","Lucee Version [null] installed"
"INFO","ajp-nio-8009-exec-8","12/28/2020","11:45:37","Update-Engine","Installing Lucee version [5.3.7.47] (previous version was [6.0.0.31-SNAPSHOT])"
"INFO","ajp-nio-8009-exec-8","12/28/2020","11:45:44","controller","no new extension available to add to local extension directory"
"INFO","Thread-45669","12/28/2020","11:46:10","controller","no new extension available to add to local extension directory"
"INFO","Thread-45669","12/28/2020","11:46:12","loader","Lucee Version [null] installed"
"INFO","ajp-nio-8009-exec-10","12/28/2020","11:48:10","Update-Engine","Installing Lucee version [5.3.7.45-RC] (previous version was [6.0.0.31-SNAPSHOT])"
"INFO","ajp-nio-8009-exec-10","12/28/2020","11:48:17","controller","no new extension available to add to local extension directory"
"INFO","Thread-45771","12/28/2020","11:48:42","controller","no new extension available to add to local extension directory"
"INFO","Thread-45771","12/28/2020","11:48:44","loader","Lucee Version [null] installed"
"INFO","127.0.0.1-startStop-1","12/28/2020","11:52:04","controller","no extension to add/install"
"INFO","ajp-nio-8009-exec-5","12/28/2020","11:56:33","Update-Engine","Installing Lucee version [5.3.7.45-RC] (previous version was [6.0.0.31-SNAPSHOT])"
"INFO","ajp-nio-8009-exec-5","12/28/2020","11:56:39","controller","no new extension available to add to local extension directory"
"INFO","Thread-122","12/28/2020","11:57:04","controller","no new extension available to add to local extension directory"
"INFO","Thread-122","12/28/2020","11:57:06","loader","Lucee Version [null] installed"
"INFO","127.0.0.1-startStop-1","12/28/2020","12:55:55","controller","no extension to add/install"
"INFO","ajp-nio-8009-exec-9","12/29/2020","12:46:53","Update-Engine","Installing Lucee version [5.3.7.47] (previous version was [6.0.0.31-SNAPSHOT])"
"INFO","ajp-nio-8009-exec-9","12/29/2020","12:47:00","controller","no new extension available to add to local extension directory"
"INFO","Thread-23742","12/29/2020","12:47:25","controller","no new extension available to add to local extension directory"
"INFO","Thread-23742","12/29/2020","12:47:31","loader","Lucee Version [null] installed"
"INFO","ajp-nio-8009-exec-9","12/29/2020","13:06:08","Update-Engine","Installing Lucee version [5.3.7.47] (previous version was [5.3.8.133-SNAPSHOT])"
"INFO","ajp-nio-8009-exec-9","12/29/2020","13:06:15","controller","no new extension available to add to local extension directory"
"INFO","Thread-24310","12/29/2020","13:06:40","controller","no new extension available to add to local extension directory"
"INFO","Thread-24310","12/29/2020","13:06:43","loader","Lucee Version [null] installed"
I’m guessing this might be the problem
“INFO”,“Thread-45771”,“12/28/2020”,“11:48:44”,“loader”,“Lucee Version [null] installed”
the version check returning null might be triggering a problem?