External binary debugging - GDB Internal error

Hello!

So I'm trying to debug an externally built binary with CLion and I am on FreeBSD 12.1. What i've done so far is 

- Created a dummy C++ executable project

- Deleted CMakelists and template code

- Created a new configuration with essentially an empty Target and my executable as the Executable

- Removed the Build task from Before Launch

- Also made sure that i selected the correct debugger in the Toolchain (GDB 8.3.1 built for FreeBSD)

The problem is that when I start debugging, GDB fails with the following internal error: 

target.c:2173: internal-error: void target_mourn_inferior(ptid_t): Assertion `ptid == inferior_ptid' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Create a core file of GDB? (y or n) [answered Y; input not from terminal]

Thank you in advance for any help!