Hi! Already found couple of mods that will crash the game on launch with new profiler from 2.2.

• BetterPlacement, source
• ExtraCells2, source
• GregTech 6, source

Attaching crashlog: https://pastebin.com/yHGAtyjZ
Setting B:ADVANCED_PROFILER=false makes it launch as expected.

Does this still happen with 3.5.x?

Just tried with 3.5.9 and same versions of GT6 and BetterPlacement, no issues so far.