core.MMSSync MMSSyncManager Sample

Hi,

I'm triying to use Core.MMSSync sample for MMS copying between two SPO tenants - one E4 and one dev.

But it stops with error message on targetTerm.CustomSortOrder = sourceTerm.CustomSortOrder

and after commenting that line on:

CreateNewTargetTermGroup(...

                    UpdateTerm(sourceClientContext, targetClientContext, sourceTerm, targetTerm, languagesToProcess);

Exception:   ServerErrorTypeName "Microsoft.SharePoint.Taxonomy.TermStoreOperationException" 

Updating the term failed because of aconflict

Are there any changes needed to make the sample work on SPO <-> SPO?