You are not on the current Support Package level? 
Please consider to install the latest Support Package available for your S/4HANA release. See the following link for SAP Support Package Stack Schedule.
Please, implement these 4 TopNotes which will improve stability dramatically:

• 2693824 - SAP TopNote - ML-FI inconsistency - closing reversal creates ACDOCA x MLDOC inconsistency, C+704
• 2691272 - SAP TopNote - actual cost component split 1 and incorrect delta cost component split for price changes with error MLCCS 202
• 2610889 - SAP TopNote - document update C+ 704 and transaction incorrectly identified as posting to prior period - ML document with quanti
• 2607681 - SAP TopNote - actual cost component split 2 and error during settlement with periodic unit price fallback
• 2980434 - SAP TopNote - incorrect MLDOC update during WIP calculation in collective processing
  
  
  

 Collective notes:

• 2633282 - ML Helpdesk: collective corrections for data defects analysis
• 2772395 - FCMLHELP ML Period Consistency Check - reports 10

Collective KBAs:

• 2784741 - Material Ledger with Actual Costing in S/4HANA 1809: Important Notes
• 2530890 - Material Ledger with Actual Costing in S/4HANA 1709: Important Notes
• 2416935 - Material Ledger with Actual Costing in S/4HANA 1610: Important Notes
• 2683379 - CKMLCP on S/4HANA: collective corrections
• 2683361 - CKM3 on S/4HANA: collective corrections
• 2554964 - Material Ledger with Actual Costing in S/4 HANA: list of notes for Cost Component Split issues
• 2483516 - Error ML4HRUN053 happens in CKMLCP settlement step - S/4HANA
• 2693824 - CKMLCP displays error message ML4HMASTER113
• 2408467 - Dump / error in class CL_FINS_ACDOC_ML_UTIL: Collective note
• 2739591 - S/4 HANA 1610 displays message spta001 in transaction CKMLCP