Link module flashes alternatively green and then red

I have a 3000X with latest firmware (1.8.8) and it is behaving a bit strangely when the external tanks are recharging it. When the recharging first begins the tanks (Qty 2) appear to be delivering over 700 watts to the 3000X. However, after a couple minutes, perhaps, the charging level drops to a little over 200 watts as the Link module's LED lights start to flash red and green. Eventually, the 3000X is charged up to the 85% limit I have set and then the LED lights stop flashing on the Link module. I have unplugged and plugged back in the cable from the tank to the 3000X several times, which makes no difference. Thanks.

Don

P.S. I took a short video of this but can't seem to attach it to this message.

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