I uninstall nvm, nodejs, restart. insal all - problem not disappear. nodejs process of pm2 - CPU 25%, ram increasing
If in ecosystem.config.js is about 4-5 applications ram of pm2 node increased to 2.5G and crush. And all my applications is killed.
pm2 v5.3.1
nodejs V14.17.6

part of PM2 report
--- PM2 report ----------------------------------------------------------------
Date : Mon Apr 01 2024 12:23:42 GMT+0300 (Москва, стандартное время)

--- Daemon --------------------------------------------------------------------
pm2d version : 5.3.1
node version : 14.17.6
node path : not found
argv : C:\Program Files\nodejs\node.exe,C:\Users\1\AppData\Roaming\nvm\v14.17.6\node_modules\pm2\lib\Daemon.js
argv0 : node
user : undefined
uid : N/A
gid : N/A
uptime : 20min

--- CLI -----------------------------------------------------------------------
local pm2 : 5.3.1
node version : 14.17.6
node path : not found
argv : C:\Program Files\nodejs\node.exe,C:\Program Files\nodejs\node_modules\pm2\bin\pm2,report
argv0 : C:\Program Files\nodejs\node.exe
user : 1

--- System info ---------------------------------------------------------------
arch : x64
platform : win32
type : Windows_NT
cpus : Intel(R) Core(TM) i3-7100 CPU @ 3.90GHz
cpus nb : 4
freemem : 635662336
totalmem : 8449085440
home : C:\Users\1

from pm2.

Solver !
it was because watch: '.' in ecosystem. And pm2 recursively set watch on files again and again

from pm2.