Reveal Analyzer on iCE40 Ultraplus Breakout Board: What is the common cause of core0 incorrect pattern readout?

Reveal Analyzer on iCE40 Ultraplus Breakout Board: What is the common cause of core0 incorrect pattern readout?

One common cause for this issue for iCE40 Ultraplus Breakout boards is failing to use the HW-USBN-2B cable as shown on page 43 of the tutorial.
Here's a direct link to the document: http://www.latticesemi.com/view_document?document_id=52758

Unlike other Lattice Evaluation Boards, iCE40 Ultraplus Breakout can't be directly used without proper connection of the HW-USBN-2B cable.

Also, please do not use SYSCONFIG programming pins on Reveal Analyzer ports when mapping the pinouts within Device Constraints Editor in Radiant.

For other information, refer to the Reveal Troubleshooting Guide for Lattice Radiant
Software:http://www.latticesemi.com/view_document?document_id=52761