Qlik Sense Mashup - Object not showing @ Dev-Hub

[Anonymous]

Hi all,

I am trying to mashup, but than the objectes at the last sheet at Dev-Hub is not showing for the most of the time.

So I had to use dummy sheets so that it appears on my chart.

Now, here's my questions:

1. Why does it happens?

2. If you know, how to solve this?

If anyone had experienced it before and found the solution, please let me know.

Thank you all in advance:)