0000621 C Error: 'str' object cannot be interpreted as an integer [__main__]

[PeiC3dahaiph1aeJ]

After upgrading to any version above v0.34.3 the following command (list works, load also fails) fails:
pyocd erase -t py32f030x8 --chip --config ./Misc/pyocd.yaml

This is on ubuntu with a daplink programmer.

The error is as follows:
0000621 C Error: 'str' object cannot be interpreted as an integer [main]

Once I downgrade pyocd to v0.34.3 both 'erase' and 'load' commands work again.
I've tried all releases in between and the latest main and develop branches.
This is 100% reproducible, so if there is anything you'd like me to collect, I'll be happy to.

Here is the verbose output on v36:
0006289 C Error: 'str' object cannot be interpreted as an integer [main]
Traceback (most recent call last):
File "/home/user/.local/lib/python3.10/site-packages/pyocd/main.py", line 161, in run
status = cmd.invoke()
File "/home/user/.local/lib/python3.10/site-packages/pyocd/subcommands/erase_cmd.py", line 94, in invoke
with session:
File "/home/user/.local/lib/python3.10/site-packages/pyocd/core/session.py", line 415, in enter
self.open()
File "/home/user/.local/lib/python3.10/site-packages/pyocd/core/session.py", line 553, in open
self._board.init()
File "/home/user/.local/lib/python3.10/site-packages/pyocd/board/board.py", line 143, in init
self.target.init()
File "/home/user/.local/lib/python3.10/site-packages/pyocd/coresight/coresight_target.py", line 123, in init
super().init()
File "/home/user/.local/lib/python3.10/site-packages/pyocd/core/soc_target.py", line 174, in init
seq.invoke()
File "/home/user/.local/lib/python3.10/site-packages/pyocd/utility/sequencer.py", line 213, in invoke
resultSequence.invoke()
File "/home/user/.local/lib/python3.10/site-packages/pyocd/utility/sequencer.py", line 208, in invoke
resultSequence = call()
File "/home/user/.local/lib/python3.10/site-packages/pyocd/coresight/discovery.py", line 63, in _create_cores
self._apply_to_all_components(self._create_component,
File "/home/user/.local/lib/python3.10/site-packages/pyocd/coresight/discovery.py", line 74, in _apply_to_all_components
ap.rom_table.for_each(action, filter)
File "/home/user/.local/lib/python3.10/site-packages/pyocd/coresight/rom_table.py", line 338, in for_each
action(component)
File "/home/user/.local/lib/python3.10/site-packages/pyocd/coresight/discovery.py", line 57, in _create_component
cmp.init()
File "/home/user/.local/lib/python3.10/site-packages/pyocd/coresight/cortex_m.py", line 387, in init
if not self.start_debug_core_hook():
File "/home/user/.local/lib/python3.10/site-packages/pyocd/coresight/cortex_m.py", line 428, in start_debug_core_hook
self.debug_sequence_delegate.run_sequence('DebugCoreStart', pname=self.node_name)
File "/home/user/.local/lib/python3.10/site-packages/pyocd/target/pack/pack_target.py", line 281, in run_sequence
executed_scope = seq.execute(context)
File "/home/user/.local/lib/python3.10/site-packages/pyocd/debug/sequences/sequences.py", line 408, in execute
scope = self._create_scope(context)
File "/home/user/.local/lib/python3.10/site-packages/pyocd/debug/sequences/sequences.py", line 364, in _create_scope
scope = Scope(parent=context.delegate.get_root_scope(context), name=self.name)
File "/home/user/.local/lib/python3.10/site-packages/pyocd/target/pack/pack_target.py", line 177, in get_root_scope
debugvars_block.execute(context)
File "/home/user/.local/lib/python3.10/site-packages/pyocd/debug/sequences/sequences.py", line 523, in execute
interp.execute()
File "/home/user/.local/lib/python3.10/site-packages/pyocd/debug/sequences/sequences.py", line 993, in execute
return visitor.visit(self._tree)
File "/home/user/.local/lib/python3.10/site-packages/lark/visitors.py", line 226, in visit
return getattr(self, tree.data)(tree)
File "/home/user/.local/lib/python3.10/site-packages/pyocd/debug/sequences/sequences.py", line 806, in start
values = self.visit_children(tree)
File "/home/user/.local/lib/python3.10/site-packages/lark/visitors.py", line 229, in visit_children
return [self.visit(child) if isinstance(child, Tree) else child
File "/home/user/.local/lib/python3.10/site-packages/lark/visitors.py", line 229, in
return [self.visit(child) if isinstance(child, Tree) else child
File "/home/user/.local/lib/python3.10/site-packages/lark/visitors.py", line 226, in visit
return getattr(self, tree.data)(tree)
File "/home/user/.local/lib/python3.10/site-packages/pyocd/debug/sequences/sequences.py", line 826, in decl_stmt
TRACE.debug("(line %d): decl %s = %s", getattr(tree.meta, 'line', 0), name, self._format_atom(values[1]))
File "/home/user/.local/lib/python3.10/site-packages/pyocd/debug/sequences/sequences.py", line 954, in _format_atom
return hex(node.value)
TypeError: 'str' object cannot be interpreted as an integer