File crashing on open

I have a file with several large Skatter grass groups in which I exploded the groups later on. Now when I open the file, it hangs for a long time and seems to lock/crash. I have the 1.2.1 release for 2017 but I have the same issue with 2016.

In the ruby console I see that it says "Child 2wr…_U not found, then another and then nothing.

If I disable Skatter, the files opens fine.

Is there a way to delete all Skatter groups through the console when Skatter is disabled?

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