Is there a way to raw edit a blueprint to replace references to a deleted structure?

I had created a “ScaledMesh” structure which comprised a StaticMesh field along with a vector field representing its scale.
I used this structure in a couple of blueprints to set some elements’ scale upon spawn.
But I decided to finally get rid of this ScaledMesh structure. I began to modify the three blueprints where it was used, replacing “ScaledMesh” fields with regular “StaticMesh” ones.
Now the editor keeps crashing when I try to open one of these blueprints. Is there a way to replace references to these fields ? What a pity that the editor crashes in this case instead of simply marking the nodes as invalid.