Already reported in threads relating to Alibre 2018 update, that users are seeing errors reported in Keyshot after the offered update to version 7.3.37
I contacted Luxion support and promptly had this response.
Thank you for contacting Luxion Support.
This is a known issue.
It will not cause problems during Run time.
You can unselect “show this window on Critical errors” in the Log window to avoid the warning.
Other customers experiencing the issue mention that the issue disappear if the Library window is visible.
You can try to enable the Library Window, and restart KeyShot.
Hope that helps others.
I contacted Luxion support and promptly had this response.
Thank you for contacting Luxion Support.
This is a known issue.
It will not cause problems during Run time.
You can unselect “show this window on Critical errors” in the Log window to avoid the warning.
Other customers experiencing the issue mention that the issue disappear if the Library window is visible.
You can try to enable the Library Window, and restart KeyShot.
Hope that helps others.