Keeping the data folder on another drive is no problem, CC3+ is designed to allow that, just select the location from the CC3+ installer, and it will set up correctly for that. The data folder can grow pretty big, so not everyone will have space on their system drive for it. Just remember where you placed it.

You only risk items not found if something isn't done correctly. For example, someone may have manually imported official artwork into their map using the absolute path of their data folder, instead of the more appropriate relative path. Using a relative path means it is relative to the data folder location, and will work no matter where it is placed, which is the way all official ProFantasy resources is set up.

My data folder is ~50 GB.

This is how it was with CC3 and older, the data files lived in the installation directory. But that causes all kinds of issues, because only administrators can write to that directory, so if you run CC3 as a non-admin user you get into trouble, and because of Windows UAC which runs everything in non-admin mode even if you are and admin unless you request otherwise, people would always need to right click on the icon and do a run as admin. Keeping the data files with the program itself is going right against the recommended way of doing things on Windows.

All modern programs split their data files up this way. My browser's data folder is found in App data in my user profile, my image editor puts its sample files in my documents directory, my games store their saves and settings either in my documents, or appdata (varies). It is generally a very bad idea to mix user-editable files with files the user shouldn't mess with (program files).

Some programs do allow people to pick the installation path, but CC3+ is so tiny that it shouldn't really make a difference no matter how small a C drive one have. (Note that Windows do actually make it possible to move the program files directory itself thus making all installations go somewhere else, although this isn't straight-forward to set up)

Most of the commands come from those dll's, so if those didn't load properly, it's not too suprising that the commands don't work. It seems like there is some serious issue with your install.

Things you can try is to install the newest Visual C++ runtime. Get it from Microsoft here: https://docs.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-170 (Make sure to get the x86 version, even if you have a 64-bit OS)

You can also try uninstalling and reinstalling CC3+.

But if this persist, the best course of action is to contact support. You'll find the support form on your registered user page.

You could always write such a command. An excellent candidate for a small XP project...

Just a general comment about live streams, YouTube always needs to process them after they are done, so it is out of our hands when the video will appear, but usually it will be a couple of hours after the stream ends.

That's intentional for the traveller symbols. The gas giant symbol isn't a primary planet in it's own regard, it is an indicator that a gas giant is present in the system, just as with the bases, and other information, basically just a modifer for the main planet symbol.

Maybe I'll do that one day. But it is basically this:

When tracing, it is important when picking the entity to trace that you pick a point that is part of the traced portion. CC3+ uses this pick point to determine which way to send the trace around the entity.

Well, on those cliffs you could end up doing other kinds of rolls too.....

No. Not saying that you won't find anyone, but there isn't an official program/system for such support.

Don't hesitate to ask for help on the forums though, there are a lot of skilled users here which may help you with your problems.