Magepack never ends process with no error

I’m trying to generate the bundler configuration but I can’t. First, it gave me timeout errors. So I increased the timeout. But now it never ends the process with no error (with --debug). The website also works perfectly with no JS error in the console. The only output is:

ℹ Collecting bundle modules in the browser.                                                                                                                                
ℹ Collecting modules for bundle "category"

What can I do to debug more?

[laurnts]

This issue with “infinite loading” mostly happens when the page it’s self is already loading Magepack bundle-common and Magepack bundle(categories / checkout / etc)… So when you’re re-running Magepack (especially to generate new magepack.config.js) You need to prevent existing magepack bundle js loading in the Dom.

php bin/magento config:set dev/js/enable_magepack_js_bundling 0
php bin/magento cache:flush

… now you can run the magepack generate and magepack bundle After it’s finished, re-activate Magepack

php bin/magento config:set dev/js/enable_magepack_js_bundling 1

Include this sequence in your deployment sequence and that should be good.

[IvanChepurnyi]

Run into similar issues before, solution is to run it with --debug mode and when it shows you chromium window you can open console and check JS error.s. Usually for me it was a result of some third-party script loading forever or JS file having error in console.