All sequences submitted through ENA since March 20 2025 have not propagated to NCBI as assemblies.
Examples:
In total that's 2799 assemblies not visible on NCBI (at the time of writing). I've written to ENA help desk just now.
[broker #820131] AutoReply: [ena-brokers] No assemblies (GCA) have propagated to NCBI since mid March 2025