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Foreign-type-error

Hi all,
here’s another bug that I encounter using OM 6.11 on El Capitan: when I double-click on a 3dc-lib to reveal its content a message says “An error of type foreign-type-error occurred: 1.0 cannot be converted to foreign type :lisp-single-float” and a blank 3dc-lib window appears. The window cannot be closed until I shut down OM, but the error disappears if I delete the 3dc-lib box and replace it with a new one. I hope that there’s a (relatively) easy solution for this annoying issue.
Best,
Francesco

error.png

Hi Francesco
Sorry I can’t reproduce this here.
Can you attach an example ?

Dear Jean,
even in this case, the error comes and goes, and there’s no specific context I can show you as a example scenario. Overall, OM 6.11 seems to me a quite unstable release (at least on El Capitan), with all these intermittent crashes appearing and disappearing. Do you recommend me the Sierra upgrade? What Mac OS are you currently working with?
Best,
Francesco