Drag and drop stuck

Hello guys!

My new iMac 5k is arrived (with even more RAM than what I had requested) and it's great!

I've launched it in recovery mode and recovered the backup of my rMBP to get all my stuff ready and it worked great.

Now are some days I use it everyday and I have noticed a big problem:

Once in a while, if I drag anything in the OS (or accidentally click and move on some image on Chrome/Safari/Browsers) the drag and drop gets stuck and I can't release the element.

It happens with everything in the OS, and while it's stuck, I can't click on the menu bar or on the dock.

Usually, clicking ESC everything is fixed, but sometimes I need to stop my iMac to fix it.

Do you have any clue on how to fix this annoying problem?

Thanks!

 

Because everytime I call the Apple support they ask me to reinstall my computers

 

Thanks both, I had asked here if it was possible to restore a MBP backup into an iMac and the guys said so...

I'll try the PRAM reset first.

 

With Migration assistant I would not get my entire configuration on my iMac. I have several brew softwares installed and stuff configured...

 

I can't find that option? Where is?

 

I don't want to declare victory too soon but after a PRAM reset everything seems to work...

edit: in fact, talked too soon! The problem is still there. No way I reinstall my OS, it would take ages to reinstall everything!!

 

No I've not that option enabled, I don't neither use a trackpad (I use a logitech mx mouse)
Thanks however!

 

I've called the Apple support and they promptly asked me to reinstall my OS. But when I asked if there was some alternative they made me clear some cache folders and reset the preferences and the problems seems to be fixed now.

As usual, I hope I have not talked too soon!

I've cleared the cache folders of both the System Library and the User Library.
Then I've copied the preferences folder of the User Library to my desktop and I've cleared that folder.

Then I've restarted, configured again what OSX asked, and I've copied the preferences files inside the preferences folder, when it asks you if you want to replace existing files, say NO.

Then clear the bin and everything should be okay.