I have same issue since 2.5.0, then i try to download dat (2.5.1) file from sx, problem still exist.
I think payload not able to read emuland file if we boot from ur uf2 file.
I installed internally with 4 wire. This is my 2nd device. My first device working fine with old UF2 file, so sad that my device was lost. So i buy new device, which use same installation method.
auto
i use ur latest UF2 (0.93 ?)
i installed Trinket M0 internally with AutoRCM. I can boot Hetkate, yet when I try to boot SX OS 2.5.1 to boot (6.2) with Emunand, it just auto shutdown after SX splash screen. Nothing happen.