Unable to converge after conversion from PLAXIS 3D 2018 to PLAXIS 3D CE V22

Question

Hi all, 
 I'm currently doing a project on tunneling and wanted to use the model from the previous project for it. However, the previous project used PLAXIS 3D 2018 and we recently upgraded to PLAXIS 3D CE V22. 
 The warnings that appeared when the file was converted looked like additional functions and should not affect the calculations that much (I will be attaching them here) but for some reason, the model does not converge anymore and stops calculating. 
 By default, picos solver is used and the problem was resolved when I switched to pardiso, which is good for me. However, my colleague is also having problems with his model after converting it to the latest version so we are trying to find out what the issue is. 
 What can we do to optimize the calculation for the model? Thanks for the help.

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 01. (W) Existing calculation results have been reset during conversion of old project
Old calculation results are incompatible with this new version of the application.


02. (W) Existing mesh has been reset during conversion of old project
Old mesh is incompatible with this new version of the application.


03. (W) The conversion resulted in a value mismatch! Please verify the following converted parameter(s): GenuchtenGa
Original value: 0.0383
Converted value: 3.83
This was encountered for the following objects: Sand, HeavyFluid


04. (H) Data for property "ForceFullyDrainedOnActivation" not found, keeping default value
This was encountered for the following objects: InitialPhase_1.Deform, Phase_1.Deform, Phase_2.Deform, Phase_3.Deform, InitialPhase_2.Deform, Phase_4.Deform, Phase_5.Deform, Phase_6.Deform, InitialPhase.Deform, Phase_7.Deform, Phase_8.Deform, Phase_9.Deform, Phase_10.Deform, Phase_11.Deform


05. (H) Data for property "SubspaceSize" not found, keeping default value
This was encountered for the following objects: InitialPhase_1.Deform, Phase_1.Deform, Phase_2.Deform, Phase_3.Deform, InitialPhase_2.Deform, Phase_4.Deform, Phase_5.Deform, Phase_6.Deform, InitialPhase.Deform, Phase_7.Deform, Phase_8.Deform, Phase_9.Deform, Phase_10.Deform, Phase_11.Deform


06. (H) Data for property "AxisVectorZ" not found, keeping default value
This was encountered for the following objects: TCS_1_Polycurve_1, TCS_1_Polycurve_2, Tunnel_1_CSGR_1_Polycurve_1, Tunnel_1_CSGR_1_Polycurve_2, Tunnel_1_Polycurve_1, TCS_2_Polycurve_1, TCS_2_Polycurve_2, TCS_3_Polycurve_1, TCS_3_Polycurve_2, Tunnel_2_CSGR_1_Polycurve_1, Tunnel_2_CSGR_1_Polycurve_2, Tunnel_2_Polycurve_1, TCS_4_Polycurve_1, TCS_4_Polycurve_2


07. (H) Data for property "ProjectID" not found, keeping default value
This was encountered for the following objects: Project


08. (H) Data for property "UseSubspaceAccelerator" not found, keeping default value
This was encountered for the following objects: InitialPhase_1.Deform, Phase_1.Deform, Phase_2.Deform, Phase_3.Deform, InitialPhase_2.Deform, Phase_4.Deform, Phase_5.Deform, Phase_6.Deform, InitialPhase.Deform, Phase_7.Deform, Phase_8.Deform, Phase_9.Deform, Phase_10.Deform, Phase_11.Deform


09. (H) Data for property "AxisFunction" not found, keeping default value
This was encountered for the following objects: Tunnel_1_TunnelCrossSection_1, TCS_1_Polycurve_1, TCS_1_Polycurve_2, Tunnel_1_CSGR_1_Polycurve_1, Tunnel_1_CSGR_1_Polycurve_2, Tunnel_1_CSGR_1_PolycurveSurface_1, Tunnel_1_Polycurve_1, TCS_2_Polycurve_1, TCS_2_Polycurve_2, TunnelSourceEntity_88, TunnelSourceEntity_89, TunnelSourceEntity_1, TunnelSourceEntity_2, Tunnel_2_TunnelCrossSection_1, TCS_3_Polycurve_1, TCS_3_Polycurve_2, Tunnel_2_CSGR_1_Polycurve_1, Tunnel_2_CSGR_1_Polycurve_2, Tunnel_2_CSGR_1_PolycurveSurface_1, Tunnel_2_Polycurve_1, TCS_4_Polycurve_1, TCS_4_Polycurve_2, TunnelSourceEntity_8, TunnelSourceEntity_9, TunnelSourceEntity_11, TunnelSourceEntity_12


10. (H) Data for property "UseSweptMeshing" not found, keeping default value
This was encountered for the following objects: MeshOptions


11. (H) Data for property "AxisVectorX" not found, keeping default value
This was encountered for the following objects: TCS_1_Polycurve_1, TCS_1_Polycurve_2, Tunnel_1_CSGR_1_Polycurve_1, Tunnel_1_CSGR_1_Polycurve_2, Tunnel_1_Polycurve_1, TCS_2_Polycurve_1, TCS_2_Polycurve_2, TCS_3_Polycurve_1, TCS_3_Polycurve_2, Tunnel_2_CSGR_1_Polycurve_1, Tunnel_2_CSGR_1_Polycurve_2, Tunnel_2_Polycurve_1, TCS_4_Polycurve_1, TCS_4_Polycurve_2


12. (H) Data for property "AxisVectorY" not found, keeping default value
This was encountered for the following objects: TCS_1_Polycurve_1, TCS_1_Polycurve_2, Tunnel_1_CSGR_1_Polycurve_1, Tunnel_1_CSGR_1_Polycurve_2, Tunnel_1_Polycurve_1, TCS_2_Polycurve_1, TCS_2_Polycurve_2, TCS_3_Polycurve_1, TCS_3_Polycurve_2, Tunnel_2_CSGR_1_Polycurve_1, Tunnel_2_CSGR_1_Polycurve_2, Tunnel_2_Polycurve_1, TCS_4_Polycurve_1, TCS_4_Polycurve_2

Stefanos Papavasileiou · Answer

Dear Aaron, 
 It is difficult to comment on this without checking the project. With every release we improve our code and that includes our calculation kernel. The fact that the model used to converge does not mean that suddenly is wrong now, but this needs to be investigated. 
 We can only help you via a service request, so feel free to submit one and one of our support engineers can help you in detail: https://apps.bentley.com/srmanager/ProductSupport 
 Note that you can also install PLAXIS 3D CE V21 in which the changes are fewer (compared to V22) but I can imagine we are talking about a version (3D 2018) that is still 4 years old so many things are improved in the meantime.