ENBSeries

Hey, guys! I'm experiencing a number of problems with ENBseries in my Fallout 4 games:

1) When I pause the game and get on the internet, I return to a completely black screen and it takes about 15 seconds for it to gradually return to normal.

2) When I get near my companion, ADA, my camera begins to shake violently and the screen rapidly fades in and out of white...this also happens with all enemies.

3) My ENB - currently using the 'Subtle' ENB mod - will not stay on...when I enter a new cell, whether I walk into it or fast travel to it, the ENB will switch off and I'll have to turn it back on again.

I'd appreciate any help you can provide. Thanks!

1) Not a bug and impossible to fix. Use borderless windowed mode or if already windowed, then buy more ram or get videocard with more vram or stop using browsers with hardware acceleration enabled.
2) Mod do not change camera, no shaking of it either. If you mean depth of field change, then disable it or use from some other preset enbdepthoffield.fx shader (also you can try tweak it's fade time in enbseries.ini). Brightness of screen change could be adaptation, in that case bug of the preset or some files from other presets left in enbseries folder. Video of bugs can help, but it's first someone reporting such things.
3) ENBSeries never turn on/off itself, only hot keys pressing or .dllplugin files can do it. In all other cases it's caused by crapware (antivirus too) which hook in to games or weird script extender plugins, loading time optimization plugin too.

I'm using borderless fullscreen. My system specs are...

CPU: intel i7 6700k @ 4.0 GHz.
GPU: Nvidia GeForce RTX 2080 Ti 11GB.
RAM: 2x 16GB DDR4 @3600
Monitor: Alienware 34" (3440x1440) @120 Hz.
running from a 500 GB SSD

I would love to post a video for you to inspect, but I don't know how to do that. So, here's a few screenshots of my character approaching ADA...

https://i.imgur.com/IDj4joU.jpg
https://i.imgur.com/LDOrjEA.jpg
https://i.imgur.com/dvNLAPE.png
https://i.imgur.com/hNh5Mv1.png

These effects happen when I get within a certain range of mobs, too...even if they're on a floor above or below me.

This is not caused by the mod. The only possibility i can imagine if your preset have enbeffect.fx shader which try to use game original post processing code mixed with it's own, but do it incorrectly (maybe because of other mods conflicting, which changed post processing color properties). Or maybe game was updated and bethesda ruined something again, but nobody wrote here anything yet, so doubt it. I recommend to install defaul files only of the mod, delete enbseries folder, then test if it works properly or not. If not, remove mods you have installed and try again. If still happen, try to change game video setting to maxed everything and restore original fallout4.ini and fallout4prefs.ini files.

Ok, I tracked down the actual source of the problem...it was the Natural and Atmospheric Commonwealth mod that was causing the problem. Luckily, I don't need it...*Poof* it's gone! Sorry for troubling you with this...I forgot that I downloaded NAC for use with the first ENB preset that I installed.

No problem

Err...ah...I have a new problem, though. After I disabled NAC I installed the Photorealistic Commonwealth ENB and now I can't access the ENBseries editor in my game...even after I uninstalled PRC. Any Idea what I can do to fix this new problem (caused by the same guy who caused the other problem I had!)?

Edit: fixed the problem by using the 'ENB and ReShade remover' mod to remove all ENB stuff from my Fallout 4 folder...then reinstalling the ENBSeries (for the 4th time).

Just one more question and I'll get out of your hair: is there a text-based resource that will help me to understand what each of the settings in the ENB editor do? Thanks in advance!

There is [INPUT] in enblocal.ini which responsible for hotkeys and some preset makers change them, so you can simply delete that category from file and default will be generated.
As i know only "step guide" have descrition, kinda documentation for the mod. There are errors in it, but it's okay in general. I abandoned writing docs, takes too much time to update and people still not understand.