Having a really hard time working with some GeoTaggers in GEP (v. 10.5). The generated definitions from the GeoTagger take a while to become accessible (via a field mapper, for example), sometimes never appear, and sometimes disappear (usually after making an edit to the GE Service).
I found this thread, which describes very similar behavior but for 10.3.1 version of GEP:
This issue is only for GeoTagger-generated definitions, any other system- or user-generated/owned definitions seem to be fine and reliably available.
We are going to significantly bump up the CPU/RAM on the hosting server (it's Virtual, with 1 core and 8GB currently but doesn't have huge amounts services with huge amounts of data running - yet), as it is under-powered currently, so I cannot rule that out as the culprit here but wanted to see if this issue has cropped up for anyone working in 10.5 GEP.