All versions above 3.0.6 seem to not render when ember-bootstrap 4.6.3 is installed in the same app

[khanhnphan15]

I tested this with all of these versions of ember-power-select:
v4.0.0, v.4.0.1, v4.0.2, v4.0.3, v4.0.4, v4.0.5, v4.1.0, v4.1.2, v4.1.3, v4.1.4, v4.1.5

After sequentially downgrading ember-power-select to v3.0.6, I was able to get it to render again

[vlascik]

Had a similar problem, if I remember correctly what helped was to force latest e-power-select version via yarn resolutions. You could also try to run yarn why ember-power-select to find the addon(s) that depend on an old e-p-s version and fix it there.