Problem: org-preserve-local-variables error when refiling

Whenever I get an org-preserve-local-variables error (usually when refiling an item, and usually after a spacemacs update), this is the way to solve it:

cd ~/.emacs.d/elpa
find org*/*.elc -print0 | xargs -0 rm

NOTE: where the elpa directory might be in a different location depending which version/branch you’re on. e.g. ~/.emacs.d/elpa/26.3/develop/.

And then run M-x spacemacs/recompile-elpa.

Basically it's removing all of the compiled org files and then compiling them again.

source: https://github.com/syl20bnr/spacemacs/issues/11801