Issue Description
The error warning ACAPI_Element_Create: APIERR_BADINDEX appears when trying to import a .txt
Solution
The ACAPI_Element_Create error can be triggered, if your mesh tool default settings layer is set to MISSING. Therefore, to resolve the issue, open the Mesh Tool Settings and set a desired layer as shown below:
Once a layer is set, try to import the .txt file again
TIP: How to import a .TXT