clinical significance field not preserved in variant annotation from Ensembl

The Ensembl variant view, for human at least, ought to faithfully preserve the 'clinical_significance' annotation for variants observed in a locus. Although the annotation appears to be present when exporting variant data from Jalview, its value is 'ARRAY(..)' - suggesting something along the data-retrieval chain is broken.

1. select the Ensembl sequence source and import the example gene accession
2. Export the features as GFF to text box. Variant features include something like:
ENST00000479537 . sequence_variant 734 734 0.0 + . ID=sequence_variant:rs373128505;alleles=A,G;assembly_name=GRCh38;clinical_significance=ARRAY(0xf095520);consequence_type=3_prime_UTR_variant

The ARRAY(0x...) looks like a server issue (raw array reference in perl?), but should be investigated.