Just a stab in the dark, but I was having HMR issues as well and it turned out to be an obscure transitive dependency conflict - details and solutions here on the outside chance it's the same thing affecting your project https://github.com/parcel-bundler/parcel/issues/6685
Sadly in my use case it is not a dependency conflict, but I'm failing to replicate it (and actually not even trying very hard). I guess it will automagically fix itself on some minor update.
Sadly in my use case it is not a dependency conflict, but I'm failing to replicate it (and actually not even trying very hard). I guess it will automagically fix itself on some minor update.