Pretty niche tool, but Sencha Architect!
It is a wanna be GUI-Builder/IDE for ExtJS, but neither works properly.
This rant is not about ExtJS, just about Sencha Architect, which my coworkers and I were forced to use.
If you want to join the ride, here an excerpt of just some of the issues:

- installation: already the setup is more of a gamble than an actual setup, either it works on your machine or it doesn't, plain and simple

- GUI Builder: just drag and dropping components is actually nice, but the editing capabilities are frustrating, you can't edit the UI code by hand at all, just through pre defined properties. If there was the need to really mix things up it wasn't possible, I couldn't even rebuild shown examples of their ExtJS documentation. Furthermore the property editor was data type locked, which means if you want to enter a string which ExtJS already supports, but architect locks the value as a boolean, you can't edit it at all, while still using Architect

- code editing: well it is a colored texteditor, which is fine, and I could live with that, but Architect let's you just edit areas where it allows you to - want to change something else? Nope not allowed

- autocompletion: there is none at all, same goes for refactoring, multi highlighting, string replacement, and others

- code storing: well now some may think edit it somewhere else, well no, also not possible... Architect not just only saves simple js, there is also a Json formatted file for everything you have created, which is needed so the tool can actually load it for further editing. They possibly never heard of DRY. But the worst of this code storing was actually using git along with it - have a merge conflict? Merge both files! Every single time, it was so damn tedious

There are a few more, but these were the worst I can remember.
Luckily I don't have to use it anymore!
Maybe they have fixed or changed a lot of it, because the developers were aware of the issues and eager to resolve them, as far as I was told on a roadmap presentation. And some of the tools they had released in the end of my time using ExtJS were actually really good, like an IDE plugin for the framework, and I liked using it.