SAFE_POINT appears during the "Trim and map Sanger read" Workflow in case of several datasets

Scenario:

1. Open WD and choose the "Trim and map Sanger reads" sample workflow
2. Click to the "Read sequence" element and choose several ".ab1" reads from the "general/_common_data/sanger" folder
3. Create another Dataset (green plus in the "Parameters" field) and select several reads frome the above-mentioned folder again
4. Click to the "Map reads to Reference" and choose the reference "general/_common_data/sanger/general_common_data\sanger/reference.gb"
5. Run workflow
   Current result: SAFE_POINT