Welcome back to the Wefugees Community and thank you for sharing your questions with us.
I would agree with Great Man - you may get into complications if you travel to your home country while holding the residence permit according to section 25 (5) of the German Residence Act. We discussed a very similar question here. Please follow the link for more details.
Unfortunately, it is quite impossible to give you a reliable answer on your first question. Especially without knowing the reason which let the immigration office issue this kind of residence permit. If you are worried about your future stay in Germany and you want to discuss your situation individually, I can recommend you to contact a migration counselling office. Please let us know if you need support in finding a respective office in your region.
In any case, also don't hesitate to get back to us with any further questions.
All the best,