node id is strange from annotation of route response

[aibear-huang]

i have some osm file
and i build one of them and start a osrm-routed service
and i got some nodes from a route request , and the result seems all right.

and then i use osmconvert to combine all osm to pbf, and then i build this pbf and start a osrm-routed service
and i got some strange nodes,
[1.021109170,1.437227874,5243432333480608,9252979683381472,8041568168893585,1.592471774,1.132044417,1.785935019,1.592109612,1187344792961079,687335956611697,1.749107293]
there are float node id in the array. and other ids is very big then my expect id.
i change the osrm-extract code :osrm-backend/include/extractor/packed_osm_ids.hpp i change the osrmid bit from 34 to 40
because my max node id is 4e11

so i want to know why the node id from annotation is so strange?
is something unexpected happened in osmconvert? or osrm-extract?

thanks for your reply~
osrm version is 5.27.1

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