@Van_Tigranyan Has it been resolved. Judging by the issue you explained, it could be temporary issue. Try clearing your browser cache & cookies. Else try in incognito/other browsers. Does the same issue persist?
Hi @cosneg - May be you can use the Data option as shown in screenshot and merge the other object (Merged Object Data Element) with XDM object before sending data.
Hi @Perrin_Ennen - That's correct. However, I have stopped facing this issue from quite sometime now. Not sure if the product team has already fixed the bug, may be.
Don't think this can be done currently due to different dependencies. But it will be good to have a feature to copy at least the Rules & Data elements.