Is the Mesh devices UART implementation buggy?

[ScruffR]

@Jimmie

Did 1.4.3 have any changes to serial interfacing?

Nope, that was virtually a single-bug fix release.

Particle Device OS Updates Thread

Device OS 1.4.3 Default Release is out on the Web IDE for (Core/Photon/P1/Electron/Argon/Boron/Xenon/A SoM/B SoM/X SoM) released on production servers November 25th, 2019 Please read all notes below :bowtie: Note: This is a Release and may be used for production. Any known issues are likely slated for a future version, (check Github issues). It is available by default for all devices. To use, select the 1.4.3 version dropdown from the devices drawer. Downgrading back to a previous …

Shouldn't impact mesh devices at all.