I am unable to replicate the issue on exiled lands official test server or single player. Might be a siptah map issue?
What equipment are you using?
What attributes are you using?
Which nodes are you using exactly? Screenshots or videos will probably be needed as this seems more isolated.
It seems that the problem is localized in certain areas of the map, this problem was around L-M-N / 6-7-8 Going further south to K-5 and surrounding grids the nodes were fine. Unsure about other areas of the map though.