Event '..Begin Overlap..' and run 2 functions

Can be any problems with communications beetwen blueprints?

Becouse I have 2 Blueprints:

  1. Wall_BP
  2. ThirsPersonCharacter_BP

Im setting Variable in the second one (in its function_1), and want to send it to Wall_BP, but the it seems Wall_BP doesn’t read it or so…