On Wed, Dec 30, 2020 at 02:27:41PM +0100, Karsten Hilbert wrote: > That 'C' does NOT occur unless you issue the first 'S' ? Or > does it, after some timeout ? It occurs after timeout. So I should specify large enough timeout for S Ii on a thread and do other S Cis on another. It does sound weird but that's a possibility left to explored. Will update once I get a chance.