From the screenshot, it looks like the "Hotlink and Element ID" parameter is mapped to the "ObjectID" IFC Property.
You can make these mapping in the IFC Translator Dialog. Click the "..." button in the "Property Mapping" field, then click the "Map IFC Properties for Export" button.
Then find the "ObjectID" IFC Property and change the mapping from "Hotlink and Element ID" to "Element ID", which will not include the Master ID of the Hotlink.
Loving Archicad since 1995 - Find Archicad Tips at x.com/laszlonagy
AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD
2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac27