When you export layouts with Allplan Exchange all the rebar bendings are converted to angular.
When you export a layout with the "Export PDF Data" tool the bendings are exported correctly.
rebar_bending_exchange_export_01 - original in Allplan
rebar_bending_exchange_export_02 - exported with "Export PDF Data" tool
rebar_bending_exchange_export_02 - exported with Allplan Exchange
(cleanreg, cleanstd, cleanup does not help)