5G NR leg not being set up when UE in floating mode

Hi All,
Can you please give some idea about this…?

When UE is locked to 5G + corresponding LTE band for ENDC we are observing successful ENDC operation.
When the UE’s are set in floating mode - we do not observe any 5G NR leg being set up and UE stays mostly on LTE.

UE Capabilty message:


en-dc-r15 = 0: mean supported.
What is your phone?

0 means supported here.

UE should be on the LTE band in part of the ENDC combo.
If this band is not highest priority, eNB should have a feature active to steer 5G device towards this band