Ensure that the signal is correctly connected in the Node tab, ensuring there are no typos or capitalization errors. Additionally, check that the receiving node is part of the scene and hasn't been removed or destroyed, as signals won't reach nodes outside the scene tree. Verify that the signal parameters match those expected by the connected method. Debug print statements before and after the emit
call can help trace the signal's flow. Pay attention to case sensitivity in signal names, and be cautious of parent-child relationships that might interfere with signal propagation. Check for any script errors in the Godot Output panel, and ensure the scene updates after emitting the signal. If issues persist, providing relevant code snippets can aid in pinpointing the problem for more targeted assistance.