Support Multi-Key Content with Key Rotation While Ensuring Seamless Track Switching

I apologize if this question has been asked before. I searched for similar issues but couldn’t find an exact answer or may not have fully understood previous discussions.

I am trying to support multi-key HLS linear content with key rotation while ensuring seamless track switching.
As per the, Digital rights management - Key rotation

To play streams with rotating keys, pass true to MediaItem.DrmConfiguration.Builder.setMultiSession when building the media item.

I enabled DRM MultiSession mode to support key rotation, with my license server configured according to Case 2: License server responds with requested key only. However, because ExoPlayer only requests a license for the key associated with the currently selected track, I observed that playback freezes or experiences rebuffering during track switching while fetching the key for the selected track.

To avoid this issue, I reconfigured my license server following Case 1: License server responds with all keys for the content. While this prevents freezing during track switching, key rotation no longer works since all keys are provided upfront.

I have a few ideas to customize ExoPlayer to handle both scenarios, but before implementing any workarounds, I wanted to check if there is an official simple solution for this use case.

Any guidance would be greatly appreciated. Thank you!