Cannot See Maps (Android 6.0.1)

Hi all,
I installed iGO Primo (9.6.29.483387) on Samsung Galaxy S5 (not rooted).
After installation I can open the application without any errors however I do not see maps that are on the external SD card /addons.
If I copy a map to the internal storage, then I can access it via the application.
So the only problem is that maps from the external SD card are not visible. It's not the end of the world except that I am consuming internal memory.

Any advise?

In the SYS file I have:
[folders]
;linked_root_list="/ext_card/iGO /sdcard2/iGO /sdcard/iGO /sdcard/sd/iGO /sdcard/external_sd/iGO /storage/sdcard0/iGO /storage/extSdCard/iGO /storage/iGO /mnt/sdcard/iGO /mnt/sd/iGO /mnt/iGO /mnt/sdcard/sd/iGO /mnt/sdcard/external_sd/iGO /mnt/emmc/iGO /mnt/extsd/iGO /mnt/ext_card/iGO /mnt/ext_sd/iGO /mnt/extSdCard/iGO /mnt/sdcard-ext/iGO /mnt/sdcard2/iGO /mnt/sdcard/_ExternalSD/iGO /mnt/sdcard/ExtStorages/iGO /mnt/sdcard/extStorages/SdCard/iGO /mnt/extern_sd/iGO /mnt/external_sd/iGO /mnt/_ExternalSD/iGO /mnt/exsdcard/iGO /mnt/external_sd/iGO"

has_secondary_root=1
android_secondary_root_path="/storage/EXT_SD_Card/addons"