the issue was resolve. the problem is bug CSCuc76451.
apply the following workaround for this software defect:
Disable the HBC by executing the following CLI:
- SCE8000#>configure
- SCE8000(config)#>interface LineCard 0
- SCE8000(config if)#>tunable GT_PL_MODULE__HBC_ENABLED value false
Please make sure that this CLI is executed after applying PQB.