It is impossible to restrict the level requirement of a research. This prevents users to easily find what they are looking for.
1. Log in the game and select your character.
2. Press “O” to open the trade post and select “Buy in Trade Post”.
3. Click on “Show Terms” and write two different value in the level restrictions fields.
4. Click on “Submit”.
5. Notice that that level restriction option is not working properly.
The level restriction option should work properly.
The issue occurs 100% of the time.