GitLab throws 404 on newly created issue

https://sentry.io/gitmate-ug-haftungsbeschrankt/mastergitmateio/issues/357066355/

RuntimeError: ({'message': '404 Not found'}, 404)
(3 additional frame(s) were not displayed)
...
  File "IGitt/Utils/__init__.py", line 83, in refresh
    self._data.refresh()
  File "IGitt/Utils/__init__.py", line 40, in refresh
    self._data = self._refresh()
  File "IGitt/GitLab/__init__.py", line 29, in _get_data
    return get(self._token, self._url)
  File "IGitt/GitLab/__init__.py", line 90, in get
    headers=headers)
  File "IGitt/Interfaces/__init__.py", line 63, in wrap_func
    raise RuntimeError(response, code)

RuntimeError: ({'message': '404 Not found'}, 404)

Interestingly https://gitlab.com/api/v4/projects/gitmate%2Fopen-source%2FIGitt/issues/74 works although the request shows that those were the args:

	
[
'https://gitlab.com/api/v4', 
'get', 
{
'access_token': [Filtered]
}, 
'/projects/gitmate%2Fopen-source%2FIGitt/issues/74'
]

Affected plugin here was the similar issues ee plugin.