Bone transform rotation not working when compiled

I am trying to us a vehicle wheel steer angle to rotate suspension parts, i had issues with warning messages about invalid variables so use ?isvalid and it works fine using PIE, but when i compile standalone I still get the invalid message and parts dont rotate. I tried defining variable in the vehicle blueprint and in animation blueprint but still get same issue. Below is how im setting it up, any help to avoid the urge of rebuilding my pc with a wrecking ball will be greatly appreciated!

I have a similar issue in 4.24. were you able to solve this issue?