Problems with version 14

Hi I had my levels working with 4.12 but I think AVG deleted something in the computer and then I could not open the project, so I decided to install version 14. I could open all levels but since I moved to 4.14 my inventory system with conditions is not working anymore. I followed the system showed by Ben Ormstad, here :UE4 Tutorial - Use 2 Keycards to Unlock 1 Door - YouTube
A part from that, I noticed that my character ( first and third) won’t move until I click the mouse.
Also I had a video working fine with a trigger, and now it does not play neither.
So as you can see I have a few things that were working and now they don’t.
Any idea why so many things are broken?
I am really new to UNREAL, so any help will be really apreciated.
By the way I tried to delete the folders config, saved and intermedate before installing version 14 but the project continued to crash.
Thanks a lot.
Mercedes

The Won’t Move until Click can have something to do with the Project Settings. There is some new settings for Mouse Capture surfaced similar problem when I upgraded to 4.14.

If you go in to the Project Settings → Input. Then in the Viewport Properties you have a couple of settings for capturing the mouse. Try and change them and test if that is solving your issue.

The other stuff it hard to debug with the information you give, but when upgrading the engine some features you use may have change name or been removed/replaced with something similar. I see in the video it’s using Interface to communicate, maybe that connection has somehow been removed in your actors? Check in the class settings if the correct Interface is still there

Hi Alltvin, thank you for your answer. I tried before the Viewport Properties but it did not work. But you made me think of another way and I found it. It is in the Editor Preferences–Level Editor – Play – Play in Editor. There, you have to tick the first option Game Gets Mouse Control.
I still have to find out a solution about the video.
Regarding the inventory, I will have to rebuild everything from scratch I guess. I created all the same system in a new project and it worked fine.
It is a shame that the upgrading spoils those things.
Thanks for your help.