EX PoE drop with error "fpc0 PoE: Failed to read voltage measurements"

Hello,

I'm working with a few EX3400-48P that are exhibiting some odd behavior around PoE. Every few hours, one of the poe devices (there doesn't look to be any pattern to which device, it seems evenly distributed) will reboot indicating a momentary loss of PoE. At the same time, the following message appears in the syslog:

fpc0 PoE: Failed to read voltage measurements

My searching hasn't found what that message means so I'm at a bit of a loss to where to look for a resolution. This is happening on multiple switches in the facility. I have already updated the PoE controller. Every port/switch is well below the PoE budget.

root@switch1> show chassis firmware detail 
FPC 0                     
   PoE firmware            2.1.1.19.3
   Boot Firmware          
      U-Boot               U-Boot 2016.01-rc1 (Sep 01 2016 - 16:00:13 -0700)  1.3.0
   Boot Firmware          
      loader                       FreeBSD/armv6 U-Boot loader 1.2
FPC 1                     
   Boot Firmware          
      U-Boot               U-Boot 2016.01-rc1 (Sep 01 2016 - 16:00:13 -0700)  1.3.0
   Boot Firmware          
      loader                       FreeBSD/armv6 U-Boot loader 1.2

root@switch1> show version 
fpc0:
--------------------------------------------------------------------------
Hostname: switch1
Model: ex3400-48p
Junos: 18.2R3.4
JUNOS OS Kernel 32-bit  [20190605.30b921f_builder_stable_11]
JUNOS OS libs [20190605.30b921f_builder_stable_11]
JUNOS OS runtime [20190605.30b921f_builder_stable_11]
JUNOS OS time zone information [20190605.30b921f_builder_stable_11]
JUNOS py extensions [20190620.215446_builder_junos_182_r3]
JUNOS py base [20190620.215446_builder_junos_182_r3]
JUNOS OS crypto [20190605.30b921f_builder_stable_11]
JUNOS network stack and utilities [20190620.215446_builder_junos_182_r3]
JUNOS libs [20190620.215446_builder_junos_182_r3]
JUNOS runtime [20190620.215446_builder_junos_182_r3]
JUNOS Web Management Platform Package [20190620.215446_builder_junos_182_r3]
JUNOS ex libs [20190620.215446_builder_junos_182_r3]
JUNOS ex runtime [20190620.215446_builder_junos_182_r3]
JUNOS ex platform support [20190620.215446_builder_junos_182_r3]
JUNOS dcp network modules [20190620.215446_builder_junos_182_r3]
JUNOS modules [20190620.215446_builder_junos_182_r3]
JUNOS ex modules [20190620.215446_builder_junos_182_r3]
JUNOS ex Data Plane Crypto Support [20190620.215446_builder_junos_182_r3]
JUNOS daemons [20190620.215446_builder_junos_182_r3]
JUNOS SDN Software Suite [20190620.215446_builder_junos_182_r3]
JUNOS Extension Toolkit [20190620.215446_builder_junos_182_r3]
JUNOS Phone-home [20190620.215446_builder_junos_182_r3]
JUNOS Packet Forwarding Engine Support (EX34XX) [20190620.215446_builder_junos_182_r3]
JUNOS jdocs ex [20190620.215446_builder_junos_182_r3]
JUNOS jail runtime [20190605.30b921f_builder_stable_11]
JUNOS FIPS mode utilities [20190620.215446_builder_junos_182_r3]

fpc1:
--------------------------------------------------------------------------
Hostname: switch1
Model: ex3400-48t
Junos: 18.2R3.4
JUNOS OS Kernel 32-bit  [20190605.30b921f_builder_stable_11]
JUNOS OS libs [20190605.30b921f_builder_stable_11]
JUNOS OS runtime [20190605.30b921f_builder_stable_11]
JUNOS OS time zone information [20190605.30b921f_builder_stable_11]
JUNOS py extensions [20190620.215446_builder_junos_182_r3]
JUNOS py base [20190620.215446_builder_junos_182_r3]
JUNOS OS crypto [20190605.30b921f_builder_stable_11]
JUNOS network stack and utilities [20190620.215446_builder_junos_182_r3]
JUNOS libs [20190620.215446_builder_junos_182_r3]
JUNOS runtime [20190620.215446_builder_junos_182_r3]
JUNOS Web Management Platform Package [20190620.215446_builder_junos_182_r3]
JUNOS ex libs [20190620.215446_builder_junos_182_r3]
JUNOS ex runtime [20190620.215446_builder_junos_182_r3]
JUNOS ex platform support [20190620.215446_builder_junos_182_r3]
JUNOS dcp network modules [20190620.215446_builder_junos_182_r3]
JUNOS modules [20190620.215446_builder_junos_182_r3]
JUNOS ex modules [20190620.215446_builder_junos_182_r3]
JUNOS ex Data Plane Crypto Support [20190620.215446_builder_junos_182_r3]
JUNOS daemons [20190620.215446_builder_junos_182_r3]
JUNOS SDN Software Suite [20190620.215446_builder_junos_182_r3]
JUNOS Extension Toolkit [20190620.215446_builder_junos_182_r3]
JUNOS Phone-home [20190620.215446_builder_junos_182_r3]
JUNOS Packet Forwarding Engine Support (EX34XX) [20190620.215446_builder_junos_182_r3]
JUNOS jdocs ex [20190620.215446_builder_junos_182_r3]
JUNOS jail runtime [20190605.30b921f_builder_stable_11]
JUNOS FIPS mode utilities [20190620.215446_builder_junos_182_r3]

root@switch1> show poe controller 
Controller  Maximum   Power         Guard    Management   Status        Lldp
index       power     consumption   band                                Priority 
   0        740W      67.00W          0W     Class        AT_MODE       Disabled

Any insight into this would be greatly appreciated.