Cash Management Statement lines from one entity loaded to a different entity

Hi

We had 2 issues this month,wereby a Statement for our entity Belgium was uplaoded with Lines from a statement from our France entity. We have a lot of statements to load daily and have a requets sets set up to laod statements for all entites. For Belgium and France these request sets are 30 seconds apart. Has anyone else come across this issue were a the statement header is for correct entity but statement lines are from a different bank statement and can I prevent this from happening in the future? We have checked the bank statements for our Belgium