Error "makeVideoPlayableInline is not defined" every time I try to run my project.

I'm not exactly sure what this means, but ever since the new update, I can't run my current project anymore. I keep getting this error. Admittedly, when I try to run a fresh project, it runs just fine, but for some reason, my current project can't be run anymore without getting this error.

Have you tried to update the project file paying attention to replace the index.html, too?

There are a number of files you need to replace in your existing project. Sounds like you just haven't done them all.

I tried to replace the index.html file, and it turns out you guys were right! Now it's working just fine again. ^^ Thank you.

What do you guys mean by replacing index.html file? Replace it with what? I'm having the same problem.

with index.html from a new project

Where is index.html ?

Index.html is in your project file. Below Game.rpjproject.
Copy index.html of a new project and paste it into your project

I got the same error when trying to run the " FPLE MV Demo (https://forums.rpgmakerweb.com/index.php?threads/mbs-fple-mv.57363/page-19) " - but here's the kicker:
When I updated (replaced) the index.html - it ran BUT... it wasn't 3D / 1st person at all, just normal top-down!
Where did I go wrong?

Also, does this make it a "script related issue" ?

Why not post the issue in the thread for that plugin?

I will give it a try, thank you.

[necro]9tkitsune[/necro]

You also have a different query to that of the OP, so you would need a different thread for that reason alone. However, as has already been said, this needs to be in the thread for the particular plugin you are having problems with.