[Bug]: Lilygo T-Beam crashes and reboots when connecting over WiFi on v2.7.21

[ch40s]

Category

WiFi

Hardware

T-Beam

Is this bug report about any UI component firmware like InkHUD or Meshtatic UI (MUI)?

• Meshtastic UI aka MUI colorTFT
• InkHUD ePaper
• OLED slide UI on any display

Firmware Version

2.7.21.1370b23 Alpha

Description

When attempting to connect to the device over WiFi, the device consistently crashes and reboots itself.
This issue does not occur on firmware version v2.7.20, but appears reliably after upgrading to v2.7.21.
You may want to investigate the regression introduced in v2.7.21, particularly around WiFi initialization/connection handling and core dump configuration.

Steps to Reproduce:

• Flash device with firmware v2.7.21
• Power on the device
• Attempt to connect over WiFi
• Observe crash and automatic reboot

Expected Behavior:

• The device should allow stable WiFi connections without crashing or rebooting.

Actual Behavior:

• Device crashes immediately upon WiFi connection attempt
• Device reboots automatically after crash
• Issue is reproducible every time

Relevant log output

abort() was called at PC 0x402063b3 on core 1

Backtrace: 0x400840f5:0x3ffdc890 0x4009753d:0x3ffdc8b0 0x4009d8e5:0x3ffdc8d0 0x402063b3:0x3ffdc950 0x402063fa:0x3ffdc970 0x4020677f:0x3ffdc990 0x4020669e:0x3ffdc9b0 0x401624b9:0x3ffdc9d0 0x40162dab:0x3ffdc9f0 0x40162c3a:0x3ffdcb50 0x40135320:0x3ffdccb0 0x4012cedd:0x3ffdcf10 0x4013760b:0x3ffdcf30 0x4013ba89:0x3ffdcf50 0x4015e62a:0x3ffdcf70 0x4013a72d:0x3ffdcf90 0x400e7cbb:0x3ffdcfe0

ELF file SHA256: 2048aae356e33233

E (1937) esp_core_dump_flash: Core dump flash config is corrupted! CRC=0x7bd5c66f instead of 0x0
Rebooting...