@GGJB - I've been trying this firmware from this thread : https://community.tp-link.com/en/home/forum/topic/833844?sortDir=ASC&page=1 BUILD 20250805. Will let you know if I get any crashes.

@Ryoman - Yep, same for me. I'm also having the issue described in this thread : https://community.tp-link.com/en/home/forum/topic/852248

@Retrial - I've had the same issue, similar setup. Since upgrading any devices plugged into the ISP router aren't showing in the Deco App, they used to in the same configuration. If I plug them ALL...

@Addepade08 I get the same on X60 v3.2 latest firmware 1.4.0 20241212 - when refreshing devices usually.