I came back again with this question after some week without answer and I am trying to explain it in different words. When I open the event report apps to do analysis on tracked data, most of the time the event report dont show up and when I go to the console I see this message:
app.js:sourcemap:8 DHIS2 event reports app v29.0.39
app.js:sourcemap:13 Uncaught TypeError: Cannot read property ‘formatDate’ of undefined
at Object.D [as WestRegionTrackerItems] (app.js:sourcemap:13)
at g.n [as fn] (app.js:sourcemap:1)
at g.resolve (app.js:sourcemap:8)
at g.ok (app.js:sourcemap:8)
at Object.success (app.js:sourcemap:7)
at i (jquery.min.js:2)
at Object.fireWith [as resolveWith] (jquery.min.js:2)
at A (jquery.min.js:4)
at XMLHttpRequest. (jquery.min.js:4)
To solve this I have to clear all my browsing data and restart again the browser but even in this case some time it does not work. My DHIS2 version is 2.19 and my chrome browser version is 69.0.3497.100 (Official Build) (64-bit).
Thanks for your assistance.