My specific issue came down to the fact that the BondInterface needs to be enabled before it can be used as a track-interface.
e.g.
interface bond 1
mode lacp
load-balance l34
exit
NOTE: interface BondEthernet1 is not enable.
When trying to add the track-interface
rtrexllab01 tnsr(config)# interface GigabitEthernet1/0/0
rtrexllab01 tnsr(config-interface)# ip vrrp-virtual-router 1
rtrexllab01 tnsr(config-vrrp4)# tr
BondEthernet0 BondEthernet0.610 GigabitEthernet1/0/0 GigabitEthernet1/0/1
TenGigabitEthernet2/0/0 TenGigabitEthernet2/0/1
rtrexllab01 tnsr(config-vrrp4)# track-interface
As seen above, the BondInterface1 is not available.
rtrexllab01 tnsr(config)# interface BondEthernet1
rtrexllab01 tnsr(config-interface)# enable
rtrexllab01 tnsr(config-interface)# exit
rtrexllab01 tnsr(config)# interface GigabitEthernet1/0/0
rtrexllab01 tnsr(config-interface)# ip vrrp-virtual-router 1
rtrexllab01 tnsr(config-vrrp4)# tr
BondEthernet0 BondEthernet0.610 BondEthernet1 GigabitEthernet1/0/0
GigabitEthernet1/0/1 TenGigabitEthernet2/0/0 TenGigabitEthernet2/0/1
rtrexllab01 tnsr(config-vrrp4)# track-interface
BondEthernet1 is not available to use as a track-interface.
Thanks,
Mike