Technology file: include does not work anymore

[alto555]

Technology file:
include statement like

include "contact.tech"

was using relative path in 8.0

it does not work in 8.3

also include "absolute_path_to_file" does not work

TECHFILE/TSMCLIKE.tech: line 39: section (none):
Warning: Couldn't find include file /users/design/tsmc0_18/e-td55/pdk1P6M_4X1N/magic_pdk/TECHFILE/types.tech
TECHFILE/TSMCLIKE.tech: line 39: section (none):
Bad section header line

ls /users/design/tsmc0_18/e-td55/pdk1P6M_4X1N/magic_pdk/TECHFILE/types.tech
/users/design/tsmc0_18/e-td55/pdk1P6M_4X1N/magic_pdk/TECHFILE/types.tech

the file exist !