https://github.com/mongodb/mongo/blob/bb3279a62dfc65bdafa5164a7ce85c8322b4757b/src/mongo/db/repl/replication_coordinator_impl.cpp#L2887

When a ShardingTest is being initialized with sbe_enabled, it looks like the above check to see if a node can serve reads fails in the call to IndexScanStage::open():
https://github.com/mongodb/mongo/blob/bb3279a62dfc65bdafa5164a7ce85c8322b4757b/src/mongo/db/exec/sbe/stages/ix_scan.cpp#L179
The failure may be related to SERVER-48489, and should be reproducible by running:

python buildscripts/resmoke.py run --suite=no_passthrough --mongodSetParameters="{featureFlagSBE: true}" jstests/noPassthrough/currentop_query.js

This work should make it possible to remove the sbe_incompatible tag from at least these noPassthrough tests (it is worth checking if a few more can have the tag removed as well once this is fixed):

• jstests/noPassthrough/currentop_query.js
• jstests/noPassthrough/kill_operations.js
• jstests/noPassthrough/killop.js