Finally had a chance to test master from github (as well as v1.4.1 downloaded directly from metabox.io, which seems to be identical to what’s on github). This version won’t load or save any existing relationship data.
For anyone having major issues with 1.4.1, rolling back to version 1.4.0 at least works again for me, though still with the re-ordering issue this thread originally reported.
I have debugging turned on, and with v1.4.1 installed, I see this at the top at the top of every wp-admin page, which seems to prevent loading or saving any relationship data (username and server name obscured from my paste):
Notice: Undefined property: RWMB_Relationships_Table_Storage::$db in /home/username/servername.com/wp-content/plugins/mb-relationships-master/inc/database/class-mb-relationships-storage-handler.php on line 61
Notice: Trying to get property of non-object in /home/username/servername.com/wp-content/plugins/mb-relationships-master/inc/database/class-mb-relationships-storage-handler.php on line 61
Warning: Cannot modify header information – headers already sent by (output started at /home/username/servername.com/wp-content/plugins/mb-relationships-master/inc/database/class-mb-relationships-storage-handler.php:61) in /home/username/servername.com/wp-admin/includes/misc.php on line 1126