Windows 11 : Both IDE 1 & 2 built Code4Code [4,000 func()'s calling func()'s running from Flash)- uploaded and ran on T_4.1 without issue:
Memory Usage on Teensy 4.1:
FLASH: code:1214588, data:328112, headers:8656 free for files:6575108
RAM1: variables:83424, code:45992, padding:19544...