some of those look ok, maybe you have your alarms set to tight, for instance, flow meters tend to drop out like that so you can set it to only let you know if it stays below min for a period of time i assume.
matter a fact i dont have but 2-3 alerts set up because they can be annoying
for flow i have no alarms except if it drops to zero so i do get one every once in a while
Mine is like yours, only alarms when off. That flow reading is only because it sporadically came back on for a short period of time. Below photo is my normal readings. Only dip is my feeding schedule