[P102] erratic measurement results on bootup

[PlumRugOfDoom]

System configuration

Wemos D1 mini with I2C LCD and PZEM-004T Rev3 100A (with current transformer). Software Serial on D6(TX) and D7(RX). ESP8266 is powered via a small 3.3V mains switching power supply which is connected in parallel with the PZEM004T module (power on at same point in time, I2C LCD is powered from a 3.3V->5V boost converter, onbard I2C pullups are removed and relocated on 3.3v power rail).

Build:
20116  - Mega
System Libraries:⋄
ESP82xx Core 2843a5ac, NONOS SDK 2.2.2-dev(38a443e), LWIP: 2.1.2 PUYA support
Git Build:⋄
mega-20211224_f162ebf
Plugin Count:⋄
55 [Normal]
Build Time:⋄
Dec 24 2021 14:31:11
Binary Filename:⋄
ESP_Easy_mega_20211224_energy_ESP8266_4M1M
Build Platform:⋄
Linux-5.4.0-54-generic-x86_64-with-glibc2.29
Git HEAD:⋄
mega-20211224_f162ebf

Error Description

Fresh install, basic configuration. Everything works as expected, I can get the measurements from the PZEM-004T module and print them to the display or send via MQTT. However, on bootup the first two samples have corrupted/implausible measurement results which are reported via LCD, MQTT and web UI. Please take a look at the attached picture:

Expected behavior

Erratic data on bootup is supressed.