SoftwareSerial RX playing up on Breadboard Arduino Nano

Hello,

I'm trying to build a Bluetooth DMX-Interface with an ATMega 328P, and burned it with the Arduino Nano Bootloader. DMX with DMXSerial works perfect (what means the Clock (16Mhz Quarz) should be ok), but The rx line of SoftwareSerial is having trouble. The first byte (and sometimes the 2nd) are transfered just fine, but then weird errors occur. I already checked the Bluetooth-Module with my Uno as USB-UART-Converter, but it seems to work perfect. I can also close out the DMX libary, because with a simple write-what-readed Sketch, i had exactly the same problems. When i try softwareserial on my Uno, it works just fine. I have no more idea what to try, please help.

LG veecue

Ok, sorry, after a bit more of googling, I found AltSoftSerial, which works perfect

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