Not all parent company COA is copied

Hi, I hope you’re all well.

I’m currently having an issue regarding creating child companies.

I have created my COA for parent company, consisting of 5 levels from 1 to 5 with their sub-accounts…etc.

now whenever I create child company, all of accounts are copied except the 5th level.

I repeated the process too many times and same result.

Your help is much appreciated.

Any help please? Thanks.