User blog comment:Kirkburn/Technical Update: September 14, 2015/@comment-6475116-20150915210238/@comment-24757753-20150916044554

See Thread:911536 and Thread:911380 - is this maybe the issue for both of you?

Seems something's has broken in the way importScriptPage works since yesterday, and switching to importArticles instead is a good workaround (and can be slightly quicker to load too).