Hi dear Unreal staff, at first I checked two other bug reports here before I post this question, and I think mine is different.
Everything works verywell. There is no error. I also packaged the game and there is no problem. But blueprint always dirty.
I am not sure where it starts but I guess it starts after I put create widget function. But even I delete this it still same. I followed these steps;
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I created copy of my BP(duplicated)
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After I copied and re-open the clone, after I compile the clone, dirtiness gone. But if I re-open the clone BP still same.
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try to delete part of BP one by one, I started first “get input key down” and doesnt work
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I deleted “Input Action Jump” -Key a connection node(colored blue) and it works!
sorry I dont know how to mention but may be you may add my issue on here, bug report ue22761
Looks like they are similar.