Description of the issue:

On our server we have a weird issue, where yield of excavator ores stops at -1 after all ore is mined, instead of 0:

It has happened on multiple veins. Every affected excavators was in single loaded chunk (by Chicken Chunks chunloader), then connected via fairly long HV Wire (not chunkloaded) to chunkloaded diesel generators.

Versions & Modlist

https://pastebin.com/raw/5QZmNt2V

(I realize this is not latest IE version, but from what I see, there were no excavator-related changes since then)

Here is a screenshot of config and NBT storage of one particular instance of the problem:

Note that depletion is somehow one larger than the capacity of the excavator. This particular excavator definitely mined few hundred ores at most and was not nowhere near of being depleted.

What debugging steps could we take to help solve this issue?

Also there is a strong chance that some excavators were not actually depleted when this happened (according to our calculations we used less than half ores on some excavators and they just switched to -1 yield mid-cycle), but we could be mistaken so this is not 100% sure.