[Important Notice]
Read the Troubleshooting section to know if this Crash Fix is the right one for you.
[Intro]
So I've come across a little conflict with Media players that install special codec's for playing obscure media files (.MKV for example). And you might be wondering what could a media player do to something that has nothing to do with it. Well my friend you'd be surprised, because it can/will affect quite a bit of normal functions on your computer. But aside from that the main thing we are focusing on is Pokemon Essentials/RPG Maker games.
[Troubleshooting]
Now for some strange reason during certain travel sections/map hoping your game might just freeze on the black (loading) screen. If this happens then maybe it was just a random bug or something right? Well first take note of the aftermath. Is it just a black screen with no extra error popup? Is it saying in your window title bar "Not Responding"? Does a second (typically smaller) window popup that reads "ActiveMovie Window"? Well if you have the following symptomes then the issue is more than likely of an outside source and not the game itself. The next part is just explanation to why this is happening and why it's not really possible to stop it from happening without just removing the source of the problem.
[Why Me??? sadface]
Don't worry little whipersnaper there comes a time when you gotta just suck it up and stop downloading anime with weird mp4 file types. Sometimes you just gotta live with the good old normal mp4 file types that we all know and love. Does that mean you have to get rid of all your amazing episodes of Sword Art Online, One Piece, Death Note, and so on? NO! Of course not. That just means you'll have to find a better less angry program to play your over the counter dark alleyway totally not pirated file types. Now now I know what you're thinking, but sensai this had nothing to do with why I had to remove my 3rd party media player and sounds more like some personal stuff you went thro----SHHHHHHH we don't talk about sensai's personal life! oh wait am I talking to myself now? YOU: *stares at sensai in fear* '>_> Sensia: Nah course not anyways the reason behind certain (not all) 3rd party Media players conflicting with random programs is because for certain operations made within your program your 3PMediaPlayer (now will be shortened to 3PMP) will act all high and mighty and try to shove it's special codec down that other programs throat causing the program to freeze up in confusion and ultamitely crash. The only real way of stopping this would be to remove the codec that the 3PMP uses from your computer, because no matter what your computer is going to try to use it if it's there due to it thinking that the special codec is the best option. So basically you will just have to deal with uninstalling/reinstalling that program as needed unless (like me) you don't really need it anymore.
[How to Solve the Problem]
If you skipped all the above cool it's just storytime stuff anyways "tldr" basically if you're having this crash it's because of a program you may have installed on your computer. It is a program that installs a codec so these programs are usually Media Players you might have used to play obscure file types. Either way you can't find codecs (easily) by just searching for them so you are going to have to uninstall the entire program.
Step by Step process:
Pre-step 1: I recommend if you don't want to redownload the installer of your programs that you keep the install copy in case you need these programs again. OH AND FOREWARNING do not I repeat do not uninstall anything that says the maker was by Microsoft, your computer's company, etc. less you wish to have even more problems than you started with.
1. Find out what the program is
This requires a bit of thinking if you're like me and install random programs for some odd reason. But you want to just open up Control Panel and go to Programs and Features then click Uninstall a Program. Based on your Control Panel view you might be able to just click uninstall a program.
2. Now you want to find anything that you installed that might have installed a custom codec (For me and most it's typically a Media Player)
3. Uninstall that program then test out the game to see if it corrected the issue.
4. Repeast steps 1-3 until issue is resolved.
[Conclusion]
Hey this worked for me hopefully it'll help out others as well.
P.S.: To include pictures or not to include pictures that is the question. (video maybe? I can do either)