Looks like your 345Mhz sensors went into offline status but not the PowerG ones.
On an IQ Panel 2 there is one exceedingly common cause for this kind of issue where legacy RF sensors go offline all together.
The IQ Panel 2 uses a thin white flexible antenna wire for the legacy RF radio which must be routed out the back of the panel and into the wall for proper reception.
If the wire is left bunched up in the panel or pinched in the back plate when closed up, it will negatively impact sensor signaling and cause these offline statuses.
PowerG sensors are unaffected by this because they use a different radio and antenna.
Open the panel, make sure that white antenna is run out the back of the panel into the wall, then close up the panel.