Here is what happened: In the process of switching to Xiaomi Redmi Note 5 Pro, I somehow forgot to clear my downloads on Honor 9 Lite before resetting the handset. And since I have opted for Netflix Rs 500 per month plan, it lets me download videos only on a single device.
In case you also end up in a similar situation, I am going to show how you can easily fix this problem without bothering Netflix support team.
There are two ways to deal with this problem. Here is plan A:
Step 1: If you want to download videos on multiple devices at the same time, you can simply upgrade the plan. For that, log into your Netflix account > go to Account settings > Change plan under Plan details.
Now you may download videos on multiple devices (depending on your plan), without any interruption. But remember, the upgraded plan might also throw an error if you try to download videos on more number of devices than what Netflix allows. Maximum 4 devices are allowed if you opt for Rs 800 plan per month.
But if you are just not interested in upgrading the existing plan, here is plan B:
Step 1: Log into your Netflix account from a web browser (desktop or mobile) and navigate to Account > Settings > Manage downloaded devices.
Step 2: Netflix will then show you the number of devices associated with your account, in addition to videos downloaded on each one of them.
That is it! Now try downloading videos again and you should not face that problem anymore.