System Admin - I'm not able to upgrade from 6.12.65-28 to 6.12.65-29

In System Admin - Updates, it seems that there is an update in progress, and I’m not able to update to 6.12.65-29

This is the log :
Update Log

Update currently in progress! Please wait until complete.

2015-09-26 12:08:54: (6.12.65-28) Stage 5 complete
2015-09-26 12:08:54: (6.12.65-28) Starting stage 6
2015-09-26 12:08:54: (6.12.65-28) Stage 6 complete
2015-09-26 12:08:54: (6.12.65-28) Upgrade script complete
2015-09-26 12:08:55: (6.12.65-28) Upgrade process successfully completed!
2015-09-26 12:13:04: (FreePBX-HA) HA Detected: Enabling Maintance Mode
2015-09-26 12:27:30: (FreePBX-HA) HA Detected: Enabling Maintance Mode
2015-09-26 12:27:30: (6.12.65-29) Update already in progress (locked)
2015-09-26 15:00:15: (FreePBX-HA) HA Detected: Enabling Maintance Mode
2015-09-26 15:00:16: (6.12.65-29) Update already in progress (locked)
2015-09-26 15:08:21: (FreePBX-HA) HA Detected: Enabling Maintance Mode
2015-09-26 15:08:22: (6.12.65-29) Update already in progress (locked)
2015-09-27 18:45:19: (FreePBX-HA) HA Detected: Enabling Maintance Mode
2015-09-27 18:45:19: (6.12.65-29) Update already in progress (locked)
2015-09-27 18:47:23: (FreePBX-HA) HA Detected: Enabling Maintance Mode
2015-09-27 18:47:23: (6.12.65-29) Update already in progress (locked)
2015-11-19 14:29:25: (FreePBX-HA) HA Detected: Enabling Maintance Mode
2015-11-19 14:29:26: (6.12.65-29) Update already in progress (locked)
2015-12-09 15:37:12: (FreePBX-HA) HA Detected: Enabling Maintance Mode
2015-12-09 15:37:12: (6.12.65-29) Update already in progress (locked)

May I issue the command “pcs property set maintenance-mode=false”???
But I have not a HA cluster…

I had this problem on a couple of boxes - resolved by downloading and manually executing the script from the cli - download the script here:

http://wiki.freepbx.org/display/PPS/FreePBX-Distro-6.12.65

It works and now I’m on 6.12.65-29
Thanks!

…but in system admin - upgrade, I’m not able to upgrade to 6.12.65-30
Do you think that,from now, I must upgrade by script only?
Is there a way to clear the status of “Update already in progress (locked)”?
thanks