spent all day debugging a hot-refresh bug in react-scripts, this is the workaround. details here facebook/create-react-app#9984

ssmithcp · ssmithcp · commit 69c41fa723da · 2021-02-03T15:28:40.000-07:00
diff --git a/.gitignore b/.gitignore
@@ -69,7 +69,6 @@ typings/
 .yarn-integrity
 
 # dotenv environment variables file
-.env
 .env.test
 
 # parcel-bundler cache (https://parceljs.org/)
diff --git a/client/.env b/client/.env
@@ -0,0 +1 @@
+FAST_REFRESH=false
