When creating a mindmap in Buildin.ai, I found a major issue: if I turn a node into an Equation block or a code block, the “+” button to create child nodes disappears. This makes it impossible to expand that node or build hierarchical structures from it.
Steps to reproduce: create a mindmap → add a node → convert it into an Equation block or code block → try to add a child node.
Expected: all node types should allow adding child nodes.
Actual: the “+” button is missing.
This breaks core mindmap functionality, especially for structuring technical notes or code. Please clarify if this is a bug or intended behavior.