dual Master same time 3 different stacks

[RAJA_RAMESH_JAM]

*00:04:96:82:4d:0b 1 Active Master CA-

00:04:96:82:4c:fd 2 Active Master CA-

00:04:96:7e:29:97 7 Active Standby CA-

00:04:96:7e:29:91 8 Active Standby CA-

00:04:96:97:77:35 3 Active Backup CA-

00:04:96:97:77:3c 4 Active Standby CA-

00:04:96:9c:44:cd 6 Active Standby CA-

Same issue happend 3 different DC's with 3 diffrent stacks and in same time, i cant be cabling, power for any.
Stacks running with ExtremeXOS version15.3.1.4

[RAJA_RAMESH_JAM]

3. System UpTime: 1563 days 5 hours 48 minutes 2 seconds

[RAJA_RAMESH_JAM]

Soory if you looking for system uptime.

1, System UpTime: 1562 days 20 hours 37 minutes 21 seconds
2. System UpTime: 1563 days 5 hours 56 minutes 36 seconds
3. System UpTime: 1563 days 5 hours 56 minutes 36 seconds

[RAJA_RAMESH_JAM]

Around 4 year, we have power recycled after the issue, we dont have time stamps for all them,
I have got for one stack i.e.
Boot Time: Tue Jun 3 18:33:52 2014

[Stephane_Grosj1]

What is (was?) the uptime on those switches?

[RAJA_RAMESH_JAM]

but cant find any MAC in each other Stacks, other two stachs are isolated network