It is not uncommon at all for the executor (or administrator) of a deceased estate not to see eye-to-eye with the beneficiaries, resulting in disputes. The issues that can arise during the administration of a deceased estate can be wide and varying.
Some disputes are unavoidable, such as where the executor (incorrectly) sees themself as being in a position of power and makes decisions that are not necessarily in the estate’s best interests but tending to favour their own interests, or that of a close relative.
If disputes are not handled sensibly and realistically, delays can occur and everyone can suffer, including the beneficiaries.