Hello, not sure if this is a bug or intended but it is very annoying and I've already lost a day+ trying to work around the problem.

There seems to be some hardcoded limit for the max issues to be returned with a get call to the API, I've tried it with the bellow requests and it always gives up to 50.
/api/rest/issues?project_id=
/api/rest/issues?filter_id=
/api/rest/issues?filter_id=reported
/api/rest/issues?filter_id=unassigned

As per the comment from https://documenter.getpostman.com/view/29959/mantis-bug-tracker-rest-api/7Lt6zkP?version=latest#73397753-1560-a5cb-45f0-e0ce0194ceca I'm not sure if that is related to it at all but "The number of issues to return per page. Default is 50 but overridable by configuration."
I've added "$g_default_limit_view = 1000;" to the config_inc.php and there is no change in the returned issues from the API. Although it worked for the webpage and the defaults got increased in the view_all_bug_page.php.

I've tried saving a new filter, just for a single project, that shows 1000 issues. Again works as expected on the webpage but when I call the new filter from the API - only 50 issues.

Just for the sake of it I tried some stuff like "/api/rest/issues?page_size=1000?filter_id=123" or "/api/rest/issues?project_id=123?page_size=1000" hoping it works and maybe it isn't documented but there isn't such functionality.

My use case is that I want to get a global filter we have hiding the "resolved (And Above)", thus showing only all open bugs, so I can count them per project+subprojects. Or check the resolved/closed for the day per project from the API. This is partially achieved by the https://github.com/mantisbt-plugins/ApiExtend but after installing it, I get error 500 on its config page "/plugin.php?page=ApiExtend/config". I cannot post an issue on the GitHub page, for some reason, it doesn't have an issues page.

I tried getting a list with all of the issues concerning the day, but when the filters don't work it's a big chore because we have a lot of projects with thousands of issues, which get mixed in the results and I have to get "/api/rest/issues?page_size=12000" then filter them per project from the response. I actually did it by iterating over 3 pages of 7000 issues and adding the results "/api/rest/issues?page_size=7000&page=3" because I hit some kind of a limit (timeout, request size or serverside something maybe) if I try a bigger number than 12000 page size.