Hi all.

I have recently encountered a wired error "Unknow global id: 19954" when I was doing a Design Sensitivity Analysis (DSA) in an ABAQUS simulation involved with contact problem. The input file for the original model runs well. However, when I tried to modify the input file to include the DSA keywords and run the modified input file, I just found that ABAQUS reported that error.

The original and modified input files have been attached as follows. You may run them to check the errors. ABAQUS 2020 was used to generate the files. Thanks.

Bests,

Ning