Segmentata in the Eastern provinces

[Rado]

It's often suggested that Roman troops based in the east used lorica segmentata much less widely that those based in the west - or even not at all. Is there any real evidence for this, or is it a 'factoid'?

The only segmentata find I know of from the region is the one at Gamala, and that was particularly used by a soldier of V Macedonia, from the Danube.

If this is true, what might have been the reason for it? - Local supply? Custom or habit? Problems with sand and dust?

There are many finds of lorica seg.(of different models) from modern Bulgaria if you mean  Danube as a Eastern Roman provinces.Publications from THE LOWER DANUBE ROMAN LIMES ( 1 st -6 st C.AD)