Fatal error Block process cannot be executed in parallel

[ManuGowda]

Expected behavior

There shouldn't be any fatal errors and the block processing should be completed without any errors.

Actual behavior

10:04:50.247Z FATAL lisk-framework:
    System error: unhandledRejection : { message: 'Block process cannot be executed in parallel',
      stack:
       'Error: Block process cannot be executed in parallel\n    at Blocks._shouldNotBeActive (/home/lisk/lisk-2.0.0-rc.0-f5bc2760c-e629652-Linux-x86_64/node_modules/lisk-framework/src/modules/chain/blocks/blocks.js:564:10)\n    at Object.sequence.add [as worker] (/home/lisk/lisk-2.0.0-rc.0-f5bc2760c-e629652-Linux-x86_64/node_modules/lisk-framework/src/modules/chain/blocks/blocks.js:316:9)\n    at Sequence._tick (/home/lisk/lisk-2.0.0-rc.0-f5bc2760c-e629652-Linux-x86_64/node_modules/lisk-framework/src/modules/chain/utils/sequence.js:72:30)\n    at Timeout.nextSequence [as _onTimeout] (/home/lisk/lisk-2.0.0-rc.0-f5bc2760c-e629652-Linux-x86_64/node_modules/lisk-framework/src/modules/chain/utils/sequence.js:52:15)\n    at ontimeout (timers.js:436:11)\n    at tryOnTimeout (timers.js:300:5)\n    at listOnTimeout (timers.js:263:5)\n    at Timer.processTimers (timers.js:223:10)' }

Steps to reproduce

• Deploy a network from release branch 2.2.0(sdk) and core(development) branch
• Enable forging

Which version(s) does this affect? (Environment, OS, etc...)

2.2.0