Drag a date field variable from a form to another make forms crash. 

This start to happen with version 10.2.1.157

For a moment i think that because i was on a spanish explorer maybe the date its getting a conflict but i change the language to english and the issue remains.

In a deeper look i found that a date field in the first form when i go to the second one in the process shows error in the date format and dont let me store the second forms.

And this is the same table with the same info, only read only.

Test it on two different servers.

Test it on different browsers.

All the date fields got the bug.  -100 years prior (2117) - 100 years in the future (2117) 

I recommend not install this version at all, neither upgrade.