Same thing.
For example - my "Back To School (Chapter 1)"
Cumulative subscribers chart has stopped at "365 days - 100 535 subscribers"
But total number on the top of the page i think is correct - 121 090 subscribers

Here you go - https://developer.valvesoftware.com/wiki/L4D2_Custom_Sound_and_Music_Tutorial
Especially read paragraph "Getting started - Option 2 - As an addon/VPK"

I've updated the first post.

I'm totally agree with you guys! Tagging system is a mess right now.
I think it needs some restrictions, for example:
- In "Game Content" group of tags you should be allowed to select ONLY one tag (also "Map" tag is needed here)
- The "Game modes" group of tags should be available ONLY if you've previously selected "Campaign" or "Map" tag
- If you've selected any tag from "Infected" or "Survivors" group, then you shouldn't be able to select tags from "Game Content" or "Game Modes" group.

Also right now it's a total mess with big campaigns in Workshop. If campaign has several parts 15% of subscribers don't even know about it. This parts is all over Workshop with different raitings and amout of subscribers.
We need separate section! Campaign pages should be based on collection page template, but with one exeption - you can't add someone's works to this page, only yours. And campaign's parts pages should be visible only for creator, other user should only see campaign page in campaigns section.

Almost forgot about this tread
First post is now updated.

Great news!
What about L4D2 Workshop? Any changes in the future?

It seems a lot of gamers still have troubles with downloading and installing add-ons (downloading process just stops in the middle, game crash during add-ons validation ingame and etc.) Does steampipe update affect Workshop downloads?

Also some new features and fixes will be appreciated:
- Updated content visibility
- some way to inform server admins that new version of add-on is avaliable in workshop (to prevent campaign's version conflicts)
- Formatting (tags) of collection's descriptions doesn't work[puu.sh]
- Rating share from campaign's collection to each part of collection

It seems every time I turn on Left 4 Dead 2 (not Beta) it reinstall (or even redownloads) all of the addons. I have to wait for hours sometimes.
On top of that - game stops to download every 5th add-on and skips to next one, I have to close and open game again, because there is no other way to install that skipped add-on.
And i think i'm not alone with this problem:
https://steamhost.cn/steamcommunity_com/workshop/discussions/-1/828939163808005334/?appid=550
https://steamhost.cn/steamcommunity_com/workshop/discussions/-1/828939163823545724/?appid=550
Also several of my friends have this problem! It's so annoying!
Please fix it guys!
I don't have addons in my Left 4 Dead 2 Beta, so i don't know if this problem there also.

You are absolutely right! I have nothing more to say.

Two problems have been added - "Dedicated Servers not support Workshop" and "All add-ons turned on again after each new subscribtion"

First post have been updated. Several new items in both lists.
Also I copied thread into public discussion in order to give players the opportunity to express their opinion too.

About six hours ago, my problem with uploading new files disappeared by itself (at least for now) and I was able to upload all that I wanted.