Not able to repair various building elements, only shows 100/XXXXX

Game mode: [Online ]
Problem: [ Bug | Misc]
Region: [EU]

There are 3 elements in my Building Ground, that i cannot repair. If Repair Hammer equipped, the Tooltip shows me 100/70000 on a Khitan Ceiling. Same on two Black Ice Pillars outside.
Iam not able to repair then either to damage them. Ill damage the whole area around me but not the elements with 100/70000 health.
I play on a Community Server with Pippin Server Mod. Dont think the issue powered by the mod.20180714221301_1

Steps on how to reproduce issue:

  1. really dont know… build and hope for bug?