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AC12 - protection key cannot be found error freezes AC

Anonymous
Not applicable
Hello anyone

I replaced the JackX folder a month or two ago as AC was crashing when publishing and since then have been able to PDF etc. well.

However, since about a week ago AC 12 keeps freezing after a only a few commands and an error message comes up saying that the protection key cannot be found (or some such thing). This is happening on all files with the only difference being that on small files I can maybe do about 5-10 commands, save and PDF in this way, but on large files I cannot even finish one command before I have to force quit.

I cannot work at all and am desperate to get some work out. I have tried inserting the key in a different USB slot but this doesn't help.

Is the new JackX folder the problem? Should I replace it with the old/archived JackX folder? But then what would I do to PDF or publish?

Someone at Graphisoft please help. This is my 3rd posting.
Thanks in advance.
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