Breakpoints are not being hit - CLion Full Remote Debug - MakeFile - GDB - c

Question

It doesn't matter what type of remote debug connection I tried.. Full Remote Host, Remote Debug, Remote GDB Server etc.
Actually remote device starts working when I clicked the debug button. I can run it from my CLion but it never hits to my breakpoints..
I'm not professional on remote debugging, actually it is my second work but this time it is on already working ( readymade ) project on my Raspberry pi Lorawan device ( Debian ) .
Device connected to my home network and there is a package forwarder app in it. App listens 1680 port.
Normally it is working on remote device with no problem. I downloaded the app to my computer and built the project successfully in CLion. After I tried lots of things, almost every combination of remote debugging and settings. I understood I'm missing some point and I need help. If you can help me you will save my life
Makefile :
### get external defined data
include ../target.cfg
### Application-specific constants
APP_NAME := lora_pkt_fwd
### Environment constants
LGW_PATH ?= ../libloragw
LIB_PATH ?= ../libtools
ARCH ?=
CROSS_COMPILE ?=
OBJDIR = obj
INCLUDES = $(wildcard inc/*.h)
### External constant definitions
# must get library build option to know if mpsse must be linked or not
include $(LGW_PATH)/library.cfg
RELEASE_VERSION := `cat ../VERSION`
### Constant symbols
CC := -g $(CROSS_COMPILE)gcc
AR := $(CROSS_COMPILE)ar
CFLAGS := -O2 -Wall -Wextra -std=c99 -Iinc -I. -I../libtools/inc
VFLAG := -D VERSION_STRING="\"$(RELEASE_VERSION)\""
### Constants for Lora concentrator HAL library
# List the library sub-modules that are used by the application
LGW_INC =
ifneq ($(wildcard $(LGW_PATH)/inc/config.h),)
# only for HAL version 1.3 and beyond
LGW_INC += $(LGW_PATH)/inc/config.h
endif
LGW_INC += $(LGW_PATH)/inc/loragw_hal.h
### Linking options
LIBS := -lloragw -ltinymt32 -lparson -lbase64 -lrt -lpthread -lm -lcursor
### General build targets
all: $(APP_NAME)
clean:
rm -f $(OBJDIR)/*.o
rm -f $(APP_NAME)
ifneq ($(strip $(TARGET_IP)),)
ifneq ($(strip $(TARGET_DIR)),)
ifneq ($(strip $(TARGET_USR)),)
install:
#echo "---- Copying packet_forwarder files to $(TARGET_IP):$(TARGET_DIR)"
#ssh $(TARGET_USR)#$(TARGET_IP) "mkdir -p $(TARGET_DIR)"
#scp lora_pkt_fwd $(TARGET_USR)#$(TARGET_IP):$(TARGET_DIR)
install_conf:
#echo "---- Copying packet_forwarder conf files to $(TARGET_IP):$(TARGET_DIR)"
#ssh $(TARGET_USR)#$(TARGET_IP) "mkdir -p $(TARGET_DIR)"
#scp global_conf.json.sx1250.* $(TARGET_USR)#$(TARGET_IP):$(TARGET_DIR)
#scp global_conf.json.sx1257.* $(TARGET_USR)#$(TARGET_IP):$(TARGET_DIR)
else
#echo "ERROR: TARGET_USR is not configured in target.cfg"
endif
else
#echo "ERROR: TARGET_DIR is not configured in target.cfg"
endif
else
#echo "ERROR: TARGET_IP is not configured in target.cfg"
endif
### Sub-modules compilation
$(OBJDIR):
mkdir -p $(OBJDIR)
$(OBJDIR)/%.o: src/%.c $(INCLUDES) | $(OBJDIR)
$(CC) -c $(CFLAGS) -I$(LGW_PATH)/inc $< -o $#
### Main program compilation and assembly
$(OBJDIR)/$(APP_NAME).o: src/$(APP_NAME).c $(LGW_INC) $(INCLUDES) | $(OBJDIR)
$(CC) -c $(CFLAGS) $(VFLAG) -I$(LGW_PATH)/inc $< -o $#
$(APP_NAME): $(OBJDIR)/$(APP_NAME).o $(LGW_PATH)/libloragw.a $(OBJDIR)/jitqueue.o
$(CC) -L$(LGW_PATH) -L$(LIB_PATH) $< $(OBJDIR)/jitqueue.o -o $# $(LIBS)
### EOF
I'm sharing my last try screenshots with you : Full Remot Host.

Answer 1

If I add -g to CXXFLAGS in https://github.com/remonbonbon/makefile-example, I can debug the app target just fine.
link -> https://intellij-support.jetbrains.com/hc/en-us/community/posts/360009699119-Debugging-not-working-when-using-the-Makefile-feature-in-2020-2-EAP-