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Hello everyone,

I tried running an Adjoint Stability Analysis including Dongs convective outflow BC enforced through a Robin type specification as detailed in the user guide. I use a 2.5D expansion with version 5.7.0 and obtain satisfactory results with a high-order pressure BC. However, as I switch to a Robin BC, the following error appears:

double free or corruption (!prev)

...indicating segmentation violation.

I've attached some files of a MRE, which is basically just a cylinder at Re = 42. Is there anything wrong with my setup? Any help would be much appreciated.

Best,
Alex

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