### Steps to reproduce

_Please write down the steps to reproduce. Try to write down all necessary preconditions (what permissions do you have, are other users involved?). Example:_

1. Begin of the insertionOpen aEnd of the insertion Begin of the deletion when opening "my modules" >End of the deletion work Begin of the insertionpackage list with more than 100 workEnd of the insertion packages Begin of the insertion(in Objects per page setting, set 100 as the last value)End of the insertion
2. Begin of the insertionIn Per page, select 100End of the insertion Begin of the deletion I remove the default filter for open tasks only (justEnd of the deletion to Begin of the insertionbe shown onEnd of the insertion Begin of the deletion get enough work packages forEnd of the deletion the Begin of the insertionpageEnd of the insertion Begin of the deletion demonstration, 1000 tasks)End of the deletion
3. Begin of the insertionClick on 3 dotsEnd of the insertion Begin of the deletion I change the view configurationEnd of the deletion to Begin of the insertionopenEnd of the insertion Begin of the deletion "Group by Assignee" (I assumeEnd of the deletion the Begin of the insertionmenu and select Group byEnd of the insertion Begin of the deletion behavior is similar for other groups)End of the deletion
4. Begin of the insertionSelect Group by X (Assignee, for example) and press Apply
5. Make sure you select once again 100 objects to be shownEnd of the insertion Begin of the deletion Then I collapse all groupsEnd of the deletion

### What is the buggy behavior?

_Please describe the bug with as most details as possible. Example:_

* Begin of the insertionIf you expand all groups and countEnd of the insertion Begin of the deletion The view is showing only one line corresponding toEnd of the deletion the Begin of the insertionlines, less than 100End of the insertion Begin of the deletion first group (because the tasks for this groupEnd of the deletion are Begin of the insertionshown onEnd of the insertion Begin of the deletion aboveEnd of the deletion the Begin of the insertionpage
* If you collapse all the groups and the number of groups you have is smaller than the number of objectsEnd of the insertion Begin of the deletion taskEnd of the deletion per Begin of the insertionpage, not all groups are shown on theEnd of the insertion page Begin of the insertioneitherEnd of the insertion Begin of the deletion settings).End of the deletion

### What is the expected behavior?

_Describe how the application should behave like. Example:_

1. Begin of the insertionTheEnd of the insertion Begin of the deletion theEnd of the deletion view should show all collapsed groups lines up to the task per page.
2. If I expand a group, the number of lines per page should correspond to the collapsed groups + the tasks for the expanded Begin of the insertiongroupEnd of the insertion Begin of the deletion group.

### Important note

_Please note that unless you are a contributor to OpenProject, you can no longer edit this bug report after saving. You can still add new comments, but no longer add any new images or other attachments. Please make sure that all necessary information and attachments are added, and the following attributes are set:_

### **Logs**

_Are there errors in the browser console? (_[_Click here for information on how to open your browser's console_](https://webmasters.stackexchange.com/a/77337)_) For a local installation: Are there relevant logs output by_ `_openproject logs_` _(packaged installation) (_[_click here for details_](https://docs.openproject.org/installation-and-operations/operation/monitoring/#show-logs)_) or in a log/production.log or /var/log/openproject/ ? Please attach error output in these log files if applicable_

### Screenshots and other files

_If you have screenshots of the application's bug behavior or other relevant files, please drag them into this place or attach them using the "Files" section._End of the deletion

### Environment information

_Please check and fill out the following details to help us identify in what versions and distributions of OpenProject the error occurs_

**OpenProject installation type**

* [ ] Hosted cloud edition
* [x] Packaged installation
* What distribution?
* [ ] Docker All-in-one container
* [ ] Docker-compose installation
* [ ] Other (please specify)

**OpenProject version**

_If you're not running on the cloud edition, please specify the version of OpenProject you're running. Example: v12.1.5_

v12.4.1

**Browser**

* [ ] Chrome
* [ ] Firefox
* [ ] Safari
* [ ] Mobile Safari
* [x] Other (please specify) Edge

**Language**

_Please specify the browser language and the language of the OpenProject user for which the bug occurred._

English