• pd with jack
• open sc-scopes.pd
• display the in signal in the 2 scopes
• move an array of one scope around (some time) --> crash (on my system)

works fine on my machine ...

at the moment, i can't help you ... what you could try is commenting out the garray_lock in garray_vis() ...

if something comes to my mind, i'll let you know ...

cheers ... tim