First, we advice to print using Repetier-Server and connect to it using Repetier-Server Connector in host. That way a host crash will not have any effect on the print. Also if you do slow operations on host while printing it will not disturb the print. That is because server is a background process running independently.
Regarding the bug I just selected 4 stl files and loaded them at once without crash. So can you please describe in more detail how to reproduce it. Also any error messages you might see could be useful.
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Regarding the bug I just selected 4 stl files and loaded them at once without crash. So can you please describe in more detail how to reproduce it. Also any error messages you might see could be useful.