@hp @Doomstrike Good luck! Fingers crossed.
A long time ago, I helped someone fix an HDMI receiver that was intermittently failing to power on, which involved replacing half a dozen caps in that form factor. None of them had visibly failed, but some combination of them had degraded enough that successful boot had become probabilistic and heavily temperature dependent. Similar symptoms, some LEDs would light and chips warm up a bit, but no activity. After cap swap, good as new, <1s bootup.