I found out something is happening in the solaredge inverters (I have 2 of them) at exactly 22:45 at night (MET). This causes the communication stalling sometimes in one inverter, sometimes both. So I decided to not communicate with the iverters anymore during the nighttime. Maybe this will work for you too IanMidd? Here is my flow that is working for me.
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Used: u1, Free: f1, Mount: m1},\n// {Drive: d2, Size: s2, Used: u2, Free: f2, Mount: m2} ];\n\n\ntabel = [ {Inverter: inv1, Model: model1, Snr: sn_1, CPU: cpu1, Optimizers: opt1}, \n {Inverter: inv2, Model: model2, Snr: sn_2, CPU: cpu2, Optimizers: opt2} ]; \n\n\nmsg = {payload: tabel}\n\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":900,"y":1340,"wires":[["fcf94f2d.a528b"]]},{"id":"fcf94f2d.a528b","type":"ui_template","z":"18bf1cef.46cd6b","group":"a58040a0.442b88","name":"Two dimension array table","order":4,"width":8,"height":4,"format":"<table id=\"table\" border=\"1\">\n <tr>\n <th>Inverter</th> \n <th>{{msg.payload[0].Inverter}}</th>\n <th>{{msg.payload[1].Inverter}}</th>\n </tr>\n <tbody>\n <tr>\n <th>Model</th> \n <td>{{msg.payload[0].Model}}</td>\n <td>{{msg.payload[1].Model}}</td>\n </tr>\n <tr>\n <th>Serienr</th> \n <td>{{msg.payload[0].Snr}}</td>\n <td>{{msg.payload[1].Snr}}</td>\n </tr>\n <tr>\n <th>CPU</th> \n 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