Some elements produce files with incorrect names in "De novo assembly and contigs classification" workflow sample

Launch "De novo assembly and contigs classification" sample with some valid data. The "Classify Sequences with Kraken" and "Classification Report" elements should produce files with names based on the input file with reads name. Currently the result files names start with '_' like the input file name is empty.
The reason could be in "Assemble Reads with SPAdes" element. It is a complex element that manipulates with message context by itself, so there could be something wrong with metadata of the output message.
Also check that "Ensemble Classification Data" works fine.