Small Dogs Cause Errors

Hey, a simple version of this constant problem i have is that any 'small dogs' (breed doesn't matter) on any lot seem to cause errors with themselves, random objects (non-custom) and sims that want to interact with them.
The errors occur with just small dogs, both pets and strays. I have the patch installed and have no custom Pets related downloads or cutom content (other than self-made breeds using the traditional 'create a sim' mode.)

Errors included are as follows (I am using the small black dog called 'Grace' for the examples):

Error with themselves: Grace appears on the lot and walks around, no problem. Suddenly, when approaching the trashcan or front door, an error appears stating that the error is with Grace and not the object she is near.

Error with random objects: Grace appears on the lot and is greeted, she enters the house with no problem and approaches the fridge. Suddenly, an error occurs, first stating that the error was caused by Grace. I reset her and then another error occurs, telling me that the error was caused by the fridge. I reset and the error goes away.

Error with interaction: Grace is welcomed and approaches another family member on the lot (a child, boy) and two errors appear, one stating that grace was the error and another that the boy was the error. Resetting solves the issue.

And there is one other error which I cannot fully explain, but here it is anyway.

Repeating Error: Grace appears on the lot, is welcomed and interacts with the family. She approaches an object and suddenly merges into the floor. A repeated error appears indicating that Grace is the error. Resetting doesn't solve this, she had to be deleted.

Any advice is welcomed, these small dog errors are a pain in the rear and don't seem to stop. Note that I have no custom content for Pets, I have the patch installed and even have more recent EP's installed and their patches (other than FreeTime).

Thanks for reading.