For the pu admin. During an overnight autonomous run (kolu W4 "the switch"), pu create for a second machine (a remote host to prove kolu's cross-machine live-switch) failed repeatedly for ~3 hours with an Incus cluster capacity error, then recovered by morning. Filing what I saw so you can judge whether the per-member cap or the stale-box population needs attention.
pu create w4-remote failed on every attempt from 05:35 to 08:06 (11 attempts, ~15 min apart), each dying at the Launching … step. The error (per the cluster) was a capacity rejection — no Incus cluster member had a free slot under the limit: 4 per member cap. A retry loop logged:
05:35 attempt 1: Launching w4-remote