Connection refused to read only node

I am running an M40 NVMe with 3 electable nodes and 3 read only nodes. The issue occurs when I try to add a 4th read only node and perform a $search. Everything says Active, the search tab also says all my nodes are “Active”. Any suggestions?

MongoServerError: PlanExecutor error during aggregation :: caused by :: Remote error from mongot :: caused by :: Error connecting to localhost:28000 ( :: caused by :: Connection refused

Hi Tom, This definitely is unexpected: mind opening a support inquiry with us?