I'm trying to upgrade a site that had not been upgraded since 4.7.31. I tried to go directly to 5.44 but the database upgrade wouldn't run - it just gave me "CiviCRM Upgrade Tasks Retry Skip " with nothing in the task list.
To resolve this I started upgrading more gradually and was able to get successfully to 5.22.1. But I can't get beyond that. The next version is 5.23.0. Trying to upgrade 5.22.1->5.23.0 gives me the same as the original issue - empty task list at civicrm/upgrade.php "CiviCRM Upgrade Tasks Retry Skip "
There are no errors in ConfigAndLog and no errors in the error log on the website. Is there somewhere else I should look to see error messages?
The only other thing that I've noticed is that if I run &directoryCleanup=1 I get some error messages such as "Smarty error: the $compile_dir '/home/customer/www/XXXXX/public_html/sites/default/files/civicrm/templates_c/en_US/' does not exist, or is not a directory. in Smarty->trigger_error() (line 1100 of /home/customer/www/XXXXX/public_html/sites/all/modules/civicrm/packages/Smarty/Smarty.class.php)."
The directory definitely does exist. I didn't see anything obviously wrong with the permissions, but this seems like it might be a permissions error since the directory is definitely there.
Any suggestions for next steps would be appreciated.