Yes, you can fix this
All you have to do is go to your studio keybinds and change the hotkey. If that doesn’t fix it, try clicking on the screen before pressing space
A few tips
Editing your post
You can move posts around (to topics you are allowed to access). Also, clicking the pencil button on your post allows you to edit it. 
Posting to other topics
You can post to any topic you want such as #platform-feedback:studio-bugs
All you have to do is use the post approval process to make a post there.
- Create your topic in the Bulletin Board category instead first. Make sure your post fulfils all the guidelines of posting in the category you actually want to post it in. Save the link to the topic.
- Then, put the link in a group message to Lead_Top_Contributor . Make sure to mention the category you want it moved to in the title.
- The Lead Top Contributors will then check your topic and move it to your requested category once it meets all the guidelines of that category.