I am getting an error when using numba/jit.

Here's the function:

@jit(nopython=True)
def find_map(nodes1, nodes2, feather2, verbose=False):
    def conndirections(i1,i2):
        dr1,dr2=[0,0,0,0],[0,0,0,0]  # represents NE,NW,SE,SW directions
        conns1,conns2=nodes1[i1][1],nodes2[i2][1]
        if len(conns1)!=len(conns2): return False
        for i in conns1: 
            if nodes1[i1][0][0]-nodes1[i][0][0] > 0:
                if nodes1[i1][0][1]-nodes1[i][0][1] > 0: dr1[0]+=1   # NE
                else: dr1[1]+=1                                    # NW
            else:
                if nodes1[i1][0][1]-nodes1[i][0][1] > 0: dr1[2]+=1   # SE
                else: dr1[3]+=1                                    # SW
        for i in conns2: 
            if nodes2[i2][0][0]-nodes2[i][0][0] > 0:
                if nodes2[i2][0][1]-nodes2[i][0][1] > 0: dr2[0]+=1   # NE
                else: dr2[1]+=1                                    # NW
            else:
                if nodes2[i2][0][1]-nodes2[i][0][1] > 0: dr2[2]+=1   # SE
                else: dr2[3]+=1                                    # SW
        return dr1==dr2
                    
    mapi2_to_i1_a2={} 
    checkednodes=0
    checked_n1_indices,checked_n2_indices=[],[]  

    largestd2=-1
    moredistantcouple=(0,0)
    
    for i1 in range(len(nodes1)):
        n1=nodes1[i1]
        d2min=1e10
        i2passed=-1
        for i2 in range(len(nodes2)):
            if not i2 in checked_n2_indices:
                n2=nodes2[i2]
                d2 = (n1[0][0]-n2[0][0])**2+(n1[0][1]-n2[0][1])**2
                if d2 < d2min and d2 < feather2 and conndirections(i1,i2):  
                    d2min=d2
                    i2passed=i2
        if i2passed!=-1:
            checkednodes+=1
            checked_n1_indices.append(i1)
            checked_n2_indices.append(i2passed)
            mapi2_to_i1_a2[i2passed]=i1
            if d2min>largestd2:
                largestd2=d2min
                moredistantcouple=(i1,i2passed)
        else: 
            pass

    if verbose: print(f"nodes checked {checkednodes} out of {len(nodes1)},{len(nodes2)} - unrecognized nodes ~ {(1-checkednodes/len(nodes1))*100:.2f}%")
    n1_unrecognized,n2_unrecognized=[],[]
    for i1 in range(len(nodes1)): 
        if i1 not in checked_n1_indices: n1_unrecognized.append(i1)
    for i2 in range(len(nodes2)): 
        if i2 not in checked_n2_indices: n2_unrecognized.append(i2)

    return mapi2_to_i1_a2,n1_unrecognized,n2_unrecognized

and the puzzle is that the error

UnsupportedBytecodeError: Use of unsupported opcode (FORMAT_WITH_SPEC) found. Raised from /tmp/ipykernel_3739/147908977.py (79)

talks about an unsupported opcode FORMAT_WITH_SPEC which I didnt find anywhere google search

... so I don't even know where to start to debug it!