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We are noticing frequent disconnects to input and output nodes .
There is nothing in the logs to detect any issue. But the frequency of the nodes disconnecting in subflow is high.
sample FLow
[{"id":"6b3771fd.b0c65","type":"subflow","name":"testFlow","info":"","category":"","in":[{"x":60,"y":120,"wires":[]}],"out":[{"x":1080,"y":120,"wires":[]}],"env":[],"meta":{},"color":"#DDAA99"},{"id":"b6e9d0cf.26f2a","type":"change","z":"6b3771fd.b0c65","name":"Info","rules":[{"t":"set","p":"name","pt":"msg","to":"username","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":200,"y":120,"wires":[["f71029cc.84d838"]]},{"id":"a7c4058e.a786a8","type":"exec","z":"6b3771fd.b0c65","command":"bash","addpay":"payload","append":"","useSpawn":"false","timer":"","oldrc":false,"name":"Aim","x":560,"y":120,"wires":[["bf6ea30d.db979"],[],[]]},{"id":"f71029cc.84d838","type":"function","z":"6b3771fd.b0c65","name":"Aim API","func":"msg.payload = \"echo \"+msg.user\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":380,"y":120,"wires":[["a7c4058e.a786a8"]]},{"id":"ceb3153c.ff6f38","type":"change","z":"6b3771fd.b0c65","name":"","rules":[{"t":"delete","p":"user","pt":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":940,"y":120,"wires":[[]]},{"id":"bf6ea30d.db979","type":"function","z":"6b3771fd.b0c65","name":"Trim Newline","func":"msg.payload = msg.payload.replace(/\\r?\\n|\\r/g, \"\");\n\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":750,"y":120,"wires":[["ceb3153c.ff6f38"]]}]