Both the front-end and back-end packages listen for the

PORT

environment variable, causing a conflict if it is set The platform I'm trying to deploy GrowthBook on, Railway, always sets this variable

// packages/back-end/src/app.ts
app.set("port", process.env.PORT || 3100);

to something like

app.set("port", process.env.BACKEND_PORT || process.env.PORT || 3100);

Made a pull request: https://github.com/growthbook/growthbook/pull/4284

Would it be possible to make it so that the tags for experiments and features can be assigned to only be in use for specific projects? We have projects for web and app (and more in the future), and having the tags we use in app be available in web by default will be messy over time with a very long list.

👋 Hello, team! Loouking Forward to collaboratibg

Hi All, since the update to GrowthBook 4.0, the Experiments view is always reverted back to its standard setting, showing all experiments and removing any selected filtering, like Tags - quite annoying as this means we always have to re-pick the right tab and apply the right filtering to only see our Experiments that are relevant to us. Also the ordering in the Tags Filter seems arbitrary, at least not sorted Alphabetically. (Using Chrome on Linux)

Is the MCP server working? It doesn’t seem to load any tools

Hello! We started to use GrowthBook relatively recently & we believe we found a bug that blocks us from using experimentation feature. Context In SDK configuration -> attributes we have keys following JS object access notation e.g.

user.targetingKey

,

user.email

, etc. Using dev tools we figured out that if we pass an object like

{ user: { targetingKey: "1234", email: "<mailto:joe@example.com|joe@example.com>"  } }

, our experiments are always skipped for all users with message "Skip because missing hashAttribute" (hashAttribute being set as

user.targetingKey

) even though

user.targetingKey

is (sort of?) specified. Problem In order to fix this, we tried to pass literal keys with dots e.g.

{ "user.targetingKey": "1234", "user.email": "<mailto:joe@example.com|joe@example.com>" }

& it fixed experimentation but broke feature flag conditions (e.g.

IF user.targetingKey = "3456"

lines in GB settings) which worked correctly with nested objects. This seem to work as described in any SDK, but, as a matter of fact, we use SDKs for React & .NET. Extra Additionally to the bug itself, dev tools make it feel like nested objects aren't supported at all which doesn't quite correlate with SDK setup instructions shown in GB itself (see screenshots attached)

https://docs.growthbook.io/kb/google-analytics/google-big-query-bq-troubleshooting Here it says "GA4 offers a streaming export option that sends event data to BigQuery within minutes, rather than once per day, but this is only available for GA4 properties on Google Analytics 360 which is the paid Enterprise version." but looks like you can use it in the free version too.

Hi team, I recently started using MCP server and I'm setting up the configuration according to the official documentation but it's returning me ❌ Error: HTTP 401 Unauthorized: {"status":401,"message":"jwt malformed"}

I'm using Cursor, and this is my configuration

When I click on these buttons "Add to Growthbook" nothing happens?

Minor bug. When I clone an experiment with 2 variants and add a third variant during setup, I’m unable to open the code editor for the 3rd variant:

Hey team, I'd like to raise a possible bug on this side panel for the metric. This is a ratio metric with

displayAsPercentage: true

. On the Display Thresholds section, the numerator thresholds are also being shown as percentage, when it should be considered as an integer.

Hi team please have a look at this: https://github.com/growthbook/growthbook/issues/4533

Hey, we are unable to upgrade to a pro plan because of this error

License server errored with: Unable to create new subscription. Existing active subscription:

we were on enterprise trial, support downgraded us so we could upgrade to pro, but we are still unable to upgrade.

Hey, I've been using GB for a while now and I'm missing 2 features which would be very useful for my organisation. 1. Allow users to set a spending cap. My CTO would prefer to be able to set a limit to make sure we don't go over our allocated budget for GB 2. Allow us to see the CDN usage per project instead of per account

Hi team, would love to see this new feature for the GB API: https://github.com/growthbook/growthbook/issues/4599

I can't mark an experiment as "flat", only as "inconclusive", which is not the same: https://chatgpt.com/share/68d56dce-7788-800c-8528-6a60b10a1fd0

Ive seen a few posts in forum about 'targeting in saved groups' with timestamps. The post I did find was from 2022, any update or interest in moving in implementing this feature? Feels like a big miss to not be able to target new users easily when I have a date to compare against. I know i can do it manually in the 'Target by Attributes' area of the experiment but I would love to be able to have it set up as a saved group.

DUUUUUUUDE!!! Dashboard tab!! 🔥🔥🔥 🙏🙏🙏 This puts me reeeaaaally close to eliminating outside-Growthbook analysis and documentation dependencies. Nicely done! Lmk if I can make any fast-follow requests for this gem!

experiment hypothesis removes any new lines, we generally write entire hypothesis, and new lines are removed while rendering, also looks like markdown is also not supported. is that expected?

Hey! Our metrics become unreadable, because we have D7 D14 postfix for example

Heyy team, I realized that growthbook mcp doesn't allow to add

.

when creating growthbook flags, so I can't do

foo.bar

for example, but it's allowed from the UI and that's the pattern we have been using here, could you help please?

Hi team found this weird bug: https://github.com/growthbook/growthbook/issues/4799

It broke my experiment analysis automation and took me a while to figure out what the problem was…

Hi, I'm still having issues with the "Experiments" screen. It's very challenging to find experiments. I'm not able to sort within the columns once a tag is entered in the search box. I also thought that a filter for Watched items would be back in there by now. (Build: 4.1.0+019007b (2025-09-24))

Is there any ongoing defect with Id Lists in Growthbook? Even when the ID List is empty, this rule is being triggered for my companies users. We expected that if the ID List is empty, the rule should not be triggered.

The dashboards tab is really great! I've started using it to create new views of the data -- especially views by user segment and comparisons between different variants (e.g. treatment 1 vs treatment 2; control vs treatment 2). I know I can do that on the Results tab, but these permanent dashboards make it so much easier. I have a question about how they refresh. If I refresh the primary Results tab -- should the refresh cascade down to the Dashboard tab as well, or do I need to hit

update

on each of the dashboards? Sometimes it seems to cascade down, sometimes I have to hit update for the dashboards to get the latest counts. Thank you!!

My segments don't seem to be filtered to the project context I'm currently in - which would be nice!

Feedback and ask for the Custom Reports feature: 1. When creating a public custom report, all information is made public except for uploaded images (see Variants in img). Can uploaded images be available for public users as well?