Few issues.

[wary jay]

My map has been rendering for literally 2 weeks, 24/7. 4.4million tiles rendered so far. It leaves a small area that never seems to get registered. All chunks are loaded with chunky. 15x15k map. Any ideas?

[little arrow]

Did you try a radiusrender in those spots?

Also:

[dire rover]

renderaccelerateinterval: .001 tiles-rendered-at-once: 10 maxchunkspertick: 400 parallelrendercnt: 10 fullrenderplayerlimit: 0 per-tick-time-limit: 200 fullrender-min-tps: 5 (configuration.txt) here the server has 10 cores, change the parallelrenderct to the amount of cores you have. Next do /dynmap pause all, restart and finally do /dynmap pause none.