NSA combo including B1 and n1

Hi experts,
Checking uecapabilityInformation message from a device, I see that it reports to support combos including B1 and n1 (B1-B3-n1 and B1-n1).
Then, the parameter “supportedBandwidthCombinationSet” is set to 8 hex (0000 1…) in both cases.

My first question is if this combo could really work. On 3GPP TS 38.101-3 version 17.5.0, I cannot see any of these combos (B1+n1). On the other hand, they are listed on EN Dual Connectivity (Intra-band non-contiguous).

If these combos do not make sense, do you know any reason to include it in uecapabilities?
If these combos are perfectly fine, how do I read the “supportedBandwidthCombinationSet” parameter. On EN Dual Connectivity, there is only one combination set (0):
DC_1A_n1A 0 5,10,15,20 5,10,15,20 40

Many thanks.