Hi @Uros Djerman,
Welcome to the Microsoft Q&A Platform! Thank you for asking your question here.
It seems Azure Container Instances batch logs into groups of 12 before sending them to the Log Analytics workspace. If fewer than 12 logs are generated, they won't be ingested until the batch size is met.
Unfortunately, there’s no direct fix for this design choice. You might consider adjusting your logging configuration to reduce batch size or setting up a custom solution for real-time log ingestion.
If you have any further queries, do let us know.