I thought whitespaces doesn't really matter. This is not python :D
No, whitespace doesn't mostly matter, but maybe you invoked the MACRO precompiler features ( perlrun ) or loaded a source filter via PERL5OPT or something like that, something that inserted an extra stray curly brace or square bracket
Did you save a copy of the broken one? Did you use Data::Dumper; use Path::Tiny; dd( path( $file )->slurp_raw ) ;
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