Shopify CLI: Wait - Compiling ... (hang)

[den232]

Often changing my source code causes an immediate re-compile and the results appear directly in my app (via ngrok).   Recently I have been having a difficulty.

wait - compiling / (client and server)...

node output in my console looks like this:

Running server…
┃
┃ > shopify-app-node@1.0.0 dev
┃ > cross-env NODE_ENV=development nodemon ./server/index.js --watch ./server/index.js
┃
┃ [nodemon] 2.0.15
┃ [nodemon] to restart at any time, enter `rs`
┃ [nodemon] watching path(s): server\index.js
┃ [nodemon] watching extensions: js,mjs,json
┃ [nodemon] starting `node ./server/index.js`
┃ info - Loaded env from D:\Dropbox\0 sd\sdapp6\.env
┃ event - compiled client and server successfully in 4.6s (1224 modules)
┃ > Ready on http://localhost:8081
┃ wait - compiling / (client and server)...

(and hang ... hang ... hang)

Running shopify CLI 2.18.0

Any ideas what is going on?  I tried rebooting, restarting shopify app serve, and reinstalling the app on my development store.   All to no avail.

Thanks!  jb