encodings are ignored

Hi,
We have an issue on our implementation which we also reproduce on the single page example at https://github.com/daily-co/mediasoup-sandbox/tree/master/single-page.
Using server version 3.5.6 (3.5.7, fails to compile on windows…), and client 3.6.5.
We are setting the encodings in the client producer to, for example:
encodings:
[
{ maxBitrate: 499999 },
{ maxBitrate: 500000 },
];

No matter what we place as the lower quality (here 499999) we always end up with around 140KB/s bitrate for the low quality and the correct bitrate - around 500 KB/s in this example for the high quality res.
Setting the encodings to { maxBitrate: 500000 }, { maxBitrate: 1000000 }, will result in first track with around 140KB/s and the second with 1MB/s
Any idea why this is happening?
We would like to prevent a situation where the bitrate is below 400KB/s.
(setMaxIncomingBitrate is not called which should default to no limit)

Thanks,
EyalS

We just pass those encodings to the WebRTC engine. Not a bug in mediasoup-client.