This paragraph is from the November release, underline and bold is mine:

POET’s Chief Executive Officer Suresh Venkatesan commented, “Revenue in the quarter reflects expanded sales of DenseLight photonic sensors, primarily to existing customers for test & measurement applications. Although we are making solid progress on revenue and product expansion within our DenseLight subsidiary, our integration activities intended to establish a commercial foundation for the consolidated Company are not without challenges. We have uncovered certain deficiencies in the organizational, functional and operational structure of the fab. Importantly, we have already begun to address and remedy these vulnerabilities in order to realize the full value of this business and its related infrastructure. Despite these short-term challenges, we remain highly confident in the potential and unique value proposition that DenseLight represents for its customers and the Company alike.”

I would like to think that the most recent round of "organizational" changes we clearly presented to the shareholders prior to the subsequent and recent announcement.