Profile download on my built-in eUICC fails

[internal_server_error.log](https://github.com/user-attachments/files/22983514/internal_server_error.log) [Chip-Info-eSim_amended.txt](https://github.com/user-attachments/files/22983442/Chip-Info-eSim_amended.txt) [heinemann_session.log](https://github.com/user-attachments/files/22983443/heinemann_session.log) Hello maintainers of lpac, I have to report a potential bug (I don't know). Here is what happens when I download a test profile to my eUICC ... Modem: FM350-GL (exactly: DW5931e-esim) Firmware version: 81600.0000.00.29.23.06_5006.0002.020.602.014_F09 OS: Windows 10 Compile environment: MINGW64 Source code: latest from main branch with little amendments by me to get more output for debugging Backend used: AT_CSIM (the only backend that works for me) Attachments: chip info reported by "lpac chip info" and error log reported by "lpac lpac profile download -a LPA:1$rsp.truphone.com$QR-G-5C-1LS-1W1Z9P7" and error log reported by "lpac profile download -a LPA:1$rsp.truphone.com$QRF-HEINEMANN-PMRDGIR2EARDGIT5" (fee test profile) The logs have been amended by me to strip sensitive information from them. I hope I got them all. As you can see, each interaction ends with an error code. Most of the time authentication fails, but I have absolutely no idea why that is. Could you take look please. I would very much appreciate your input conerning a potential solution. All the best from and thanks for your wonderful provisioning and managing app, Deetsh