The module count should be like "300 of 311".

Selecting or deselecting a module affects the left number, which is correct but the sum is incorrect.
I can reproduce this in a client repo, but it seems like this is a bug in the setup tool because none of that code is even executing at this point. It shouldn't matter what the contents of the module folders are when setup is run. The incorrect sum is possibly from counting modules wrong or the position of numbers is mixed up (and so is the check/uncheck evaluation).
Hi @brendanfalkowski. Thank you for your report.
To help us process this issue please make sure that you provided the following information:
Please make sure that the issue is reproducible on the vanilla Magento instance following Steps to reproduce. To deploy vanilla Magento instance on our environment, please, add a comment to the issue:
@magento-engcom-team give me 2.3-develop instance - upcoming 2.3.x release
For more details, please, review the Magento Contributor Assistant documentation.
@brendanfalkowski do you confirm that you was able to reproduce the issue on vanilla Magento instance following steps to reproduce?
Hi @engcom-backlog-nazar. Thank you for working on this issue.
In order to make sure that issue has enough information and ready for development, please read and check the following instruction: :point_down:
Issue: Format is valid will be added to the issue automatically. Please, edit issue description if needed, until label Issue: Format is valid appears.[ ] 2. Verify that issue has a meaningful description and provides enough information to reproduce the issue. If the report is valid, add Issue: Clear Description label to the issue by yourself.
[ ] 3. Add Component: XXXXX label(s) to the ticket, indicating the components it may be related to.
[ ] 4. Verify that the issue is reproducible on 2.3-develop branchDetails
- Add the comment @magento-engcom-team give me 2.3-develop instance to deploy test instance on Magento infrastructure.
- If the issue is reproducible on 2.3-develop branch, please, add the label Reproduced on 2.3.x.
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Hi @brendanfalkowski GitHub is intended for Magento Open Source users to report on issues related to Open Source only.
You can report Commerce-related issues in one of two ways:
You can use the Support portal associated with your account
or
If you are a Partner reporting on behalf of a merchant, use the Partner portal.
@magento-engcom-team — I am not a Partner, so I have no access to these tools, but I work almost exclusively on Magento Commerce (Enterprise) projects and have for years.
There should be a clear path for people in my position to report bugs and improve the Commerce product (this is a goal I have) without paying for Partner status (this is not a goal I have).
@brendanfalkowski ok , but i'm not able to reproduce this on CE version. GitHub is intended for Magento Open Source users
Hi @sdzhepa. Thank you for working on this issue.
In order to make sure that issue has enough information and ready for development, please read and check the following instruction: :point_down:
Issue: Format is valid will be added to the issue automatically. Please, edit issue description if needed, until label Issue: Format is valid appears.[ ] 2. Verify that issue has a meaningful description and provides enough information to reproduce the issue. If the report is valid, add Issue: Clear Description label to the issue by yourself.
[ ] 3. Add Component: XXXXX label(s) to the ticket, indicating the components it may be related to.
[ ] 4. Verify that the issue is reproducible on 2.3-develop branchDetails
- Add the comment @magento-engcom-team give me 2.3-develop instance to deploy test instance on Magento infrastructure.
- If the issue is reproducible on 2.3-develop branch, please, add the label Reproduced on 2.3.x.
- If the issue is not reproducible, add your comment that issue is not reproducible and close the issue and _stop verification process here_!
[ ] 5. Verify that the issue is reproducible on 2.2-develop branch. Details
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[ ] 6. Add label Issue: Confirmed once verification is complete.
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Hello @brendanfalkowski
Thank you for contribution and collaboration!
According to current Magento organization flows and processes issues related to Magento Commerce (Enterprise) can be reported only to Enterprise Support.
@brendanfalkowski as I can see from your comment, you are not a partner but you
work almost exclusively on Magento Commerce (Enterprise)
I assume your employer or client has bought the license and should have the ability to report issue to Support.
I think the best approach will be to ask them to report this issue directly to Support.
From my side, I will try to search is this issue created in the internal Jira or not. If not I will create a new ticket but I can not promise anything. Priority and Severity for fix this issue is out of my responsibility.
Hi @brendanfalkowski
We will double check this issue. But we need more details from your side. I believe this is not EE related issue and if the issue exists, it should be reproducible on CE as well. We will contact you shortly to get more information about this case.
Thank you for follow up on this 👍
Hello @brendanfalkowski
We have investigated this issue on the latest Magento(Open Source and Commerce editions) based on the latest 2.3-develop branch(es)
For verifying we used next Preconditions and Scenarios
Preconditions:
sitename.test/setupSCENARIO#1: _Count of modules on Web Page VS Summ number_
//div[@class='multiselect multiselect-custom']/ul/li/labelActual Result = Expected Result

SCENARIO#2: _Count of module folders on the filesystem VS. Sum and count on the web_
/bin/ls -lA | egrep -c '^d'Actual Result = Expected Result

SCENARIO#3: Unselecting listed modules on the Web Install page
_Link to the GIF video of performed steps:_ https://www.screencast.com/t/mC2Ewp3pG12
Actual Result = Expected Result
Summarize:
Unfortunately, we are not able to reproduce the issue by steps from the description.
It seems some important precondition(s) or step(s) was missed.
@brendanfalkowski , Could you please help us and provide missing information?
2.3-develop branchHey @brendanfalkowski, closing this issue as it looks like we were not able to reproduce this issue.
Please, see the comment https://github.com/magento/magento2/issues/21700#issuecomment-473393787
Closing because of inactivity.
Most helpful comment
@magento-engcom-team — I am not a Partner, so I have no access to these tools, but I work almost exclusively on Magento Commerce (Enterprise) projects and have for years.
There should be a clear path for people in my position to report bugs and improve the Commerce product (this is a goal I have) without paying for Partner status (this is not a goal I have).