heya, i'm having issues using probe-rs (but i guess the issue is not probe-rs) with a jlink host from a nucleo board and a custom stm32 board. apparently the communication between host and target works up until a certain point. 
i get `WARN probe_rs::session: Could not clear all hardware breakpoints: An ARM specific error occurred. Caused by: A timeout occurred during an operation.` in the console.
if i use a logic analyzer and decode the SWD protocol these are the last messages:

Request  DebugPort Read CTRL/STAT
Turnaround
ACK OK
WData 0xF0000040 reg CTRL/STAT bits CSYSPWRUPACK=1, CSYSPWRUPREQ=1, CDBGPWRUPACK=1, CDBGPWRUPREQ=1, CDBGRSTACK=0, CDBGRSTREQ=0, TRNCNT=0x000, MASKLANE=0x0, WDATAERR=0, READOK=1, STICKYERR=0, STICKYCMP=0, TRNMODE=Normal, STICKYORUN=0, ORUNDETECT=0
Data parityok
Request  DebugPort Write CTRL/STAT
Turnaround
ACK OK
Turnaround
WData 0x00000000 reg CTRL/STAT bits CSYSPWRUPACK=0, CSYSPWRUPREQ=0, CDBGPWRUPACK=0, CDBGPWRUPREQ=0, CDBGRSTACK=0, CDBGRSTREQ=0, TRNCNT=0x000, MASKLANE=0x0, WDATAERR=0, READOK=0, STICKYERR=0, STICKYCMP=0, TRNMODE=Normal, STICKYORUN=0, ORUNDETECT=0
Data parityok
Line Reset 53 bits
Line Reset 56 bits

anyone have any idea on what's happening? 
since this is the first board i designed i cannot exclude hardware issues (which are extremely plausible)