Question about Outlook Express

Ok, I got a problem with Windows Live Essentials 2012 Movie Maker. I know MS has stopped the support for it, but I'm still using it and I need some help. So please, if someone knows how to fix it please tell me.

I started a project and finished it, and exported it to an mp4 file. There were more than 70 items in the project while many items are from the same source video (it is very long, an hour and 20 minutes or so). After exporting it, I found that the videos' timings are not correct. 

In the app I cropped the video's 30th second to 35th second. However, after exporting it, it became the 32nd second to 37th second (not sure exactly how much time it delays).

Thanks for any help.

***Moved from: Apps on Windows 10 / Other Windows apps / Music & Video***

I have used Movie Maker many times for small projects, but when I tried to use it this week, I found that it was no longer working properly.  I know it is no longer supported, but it used to work and now it doesn't, so something has changed.  There have been several Microsoft automatic updates since I last used it, so I wondered if anybody could advise whether one of these could have

a) modified Windows Essentials, or

b) modified some file that Movie Maker was dependent on.

The symptom I see is as follows :

Previously :

I open a video file, and it appears in the time line as   Begin..........,,,,,,,...................End.

I want to cut a scene out of it, so I make a Split before and after the piece I want to remove (let's call the split points A and B),

so it would show   Begin......A,,,,,,,B...............End

then I would right-click the section to be removed and select Cut.  Then, the time line would show

Begin......AB...............End   (with the section between A and B removed.  The actual split points would be merged into one)

Now, I do the same operation, but when I right-click the section to remove and select Cut, the section is greyed out, but remains on the time line, and if I save the file, that section is still in it.

I have tried un-installing it and reinstalling Movie Maker from a non-Microsoft website, but the new one still behaves the same way.

If Microsoft has disabled the program, then there's nothing I can do about it, but if it is due to a dependency, I may be able to load an older version of it.

Windows Live Mail often shows Subjects in Raw UTF8 encoded form.

At screenshot, we have mails from same Digest maker, with Russian Subjects encoded in UTF8.

LiveMail shows some of subjects raw. Althrough it shows other subjects correctly.

Gmail show subjects correctly for all mails.

In particular:

Shows correctly:

Subject: =?utf-8?Q?=D0=98=D0=BD=D0=B2=D0=B5=D1=81=D1=82=D0=BD=D0=B8=D0=BA=20=E2=80=94=205=3A=C2=A0ico=2C=20=D0=BE=D0=B1=D0=BB=D0=B8=D0=B3=D0=B0=D1=86=D0=B8=D0=B8=20=D1=80=D0=B5=D0=B3=D0=B8=D0=BE=D0=BD=D0=BE=D0=B2=20=D0=B8=20Nvidia?=

Windows Live Mail often shows Subjects in Raw UTF8 encoded form.

At screenshot, we have mails from same Digest maker, with Russian Subjects encoded in UTF8.

LiveMail shows some of subjects raw. Althrough it shows other subjects correctly.

Gmail show subjects correctly for all mails.

In particular:

Shows correctly:

Subject: =?utf-8?Q?=D0=98=D0=BD=D0=B2=D0=B5=D1=81=D1=82=D0=BD=D0=B8=D0=BA=20=E2=80=94=205=3A=C2=A0ico=2C=20=D0=BE=D0=B1=D0=BB=D0=B8=D0=B3=D0=B0=D1=86=D0=B8=D0=B8=20=D1=80=D0=B5=D0=B3=D0=B8=D0=BE=D0=BD=D0=BE=D0=B2=20=D0=B8=20Nvidia?=