<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=22009) </details> <!--IssueSummary end--> ### Summary Several UI elements on the new issue page give no user feedback when their requests fail, namely: - issue template dropdown - assignee dropdown - milestone dropdown ### Steps to reproduce - got to new issue page of any project - switch to offline mode - use dropdowns ### What is the current *bug* behavior? No user feedback for failing requests:  ### What is the expected *correct* behavior? For every failing request an error message is shown (as for the labels dropdown).