RAM Concrete Instability (RAM Frame works fine)

Hello,

I am having issues with the RAM Concrete Analysis module. Every time I start an analysis, I get an instability error, similar to the one below (the beam number is not always the same, but it is always at the top level of the structure.

The structure is a 14 story two-way slab with concrete moment frame columns. All of my frame columns and beams have fixed ends. I have tried removing and recreating levels and have searched the forums for other solutions to this issue. However, every time I run the analysis, I get an instability error message on the top floor.

Thanks,

Kyle Poklar

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