I recently submitted my first paper to BMC Bioinformatics journal and had formatted everything according to their author guidelines, using their own template (Overleaf, Their own page). Then, my submission got declined because the pdf produced by their own template doesn't show all author affiliations on the title page, but only the first author's affiliation. The rest of the affiliations is shown after the main part of the manuscript. They somehow require all authors' affiliations to be shown on the title page, even though their own template does not allow this. I asked the assistant editor twice how to resolve this problem, but got no answer for a month and counting.
My question is: can I somehow tweak the template so it shows all authors on the first page or should I just reformat my paper to use the article class?
Thanks in advance for your help/advice!