One of the largest publishers, Springer Nature, noted in April 2021 that in some cases they will effectively ignore rights retention language in manuscripts and require a transfer of copyright. This could create a conflict for the publisher once the manuscript has been editorially accepted. However, having already asserted and documented a CC-BY licence, you have the rights you need to reuse the manuscript. If concerned, you could seek confirmation from the editor that you can retain your rights before submitting your manuscript.
https://doi.org/10.31219/osf.io/2ajsg
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