The solution matrix is not factorizable

I am a first user for FEA. I wanna analysis the forcing situation of a hollow tube. but I cannot run it. here could anyone tell me the problem?

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Hi there,
Thank you for posting on the forum.
We will take a look and get back to you soon :slight_smile:

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thank you. hope to hear from you soon

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Welcome @zhizhi_wu :wave: can you provide full task description for others to have a look and perhaps trying out themselves. Imho sometimes, it is much easier for other to recreate the task solution instead of trying to debug without existing reference paper.

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