Yes, I can confirm it and it is quite annoying. I will talk to markus when he will be available

@p_teichmann, were you working on this one? (don't remember exactly). Find the issue important since it s something related to frontend/what users see when they access the sfotware.

i wasnt working on it but i fixed in https://github.com/LimeSurvey/LimeSurvey/commit/ff061148dcc44d9e07000276c046e82bbed737af

Fix committed to master branch: http://bugs.limesurvey.org/plugin.php?page=Source/view&id=28999

In LimeSurvey Version 3.17.0+190402 I do not see Simple plugins below Resources. In the end I clicked on Resources and manually changed the URL into something like
/index.php/admin/survey/sa/rendersidemenulink/subaction/plugins/surveyid/46159
to change the plugin settings on the Survey level.

Is this problem related to this bug & fix?

@JanE : try "Reset Menu to default"

@DenisChenu : thanks. That did the trick. I do not know why it was not default anymore. I will ask Tammo as it also is the case in our production environment.

@DenisChenu : In our production environment the 'simple plugins' menu entry was placed in the Plugin menu at position (order) 1. When I changed that to position (order) 13 in the Survey menu the menu became visible. The wrong placement was definitely not a deliberate action on our side.

@JanE : i didn't like the current Simple Menu plugin, personally prefer a direct access :)