Merge Fields names are being left behind when filled

My sharepoint document library has a template that has merge fields to be filled. When creating a document from that template the merge fields that get updated by the Plumsail fill merge fields action get filled however the name of the fields are left behind. Fields are merged correctly when not using a template.

here is a picture of whats happening.

Hello @zombie_duck, thank you for your message.

Could you please send me your template via PM?