Hi guys My mom is applying for a tourist visa to come visit me to Canada. She filled, validated and signed the IMM5257 form, but when she tries to upload it to the IRCC website, she gets the following message: Error: The form you have uploaded was not accepted. Error description: Please ensure you download the latest form from the IRCC website, complete the form using Adobe Reader, validate and upload again. She downloaded the form again and repeated the same process just in case, but she's still getting the same message when trying to upload the form. Has this happened to anyone else?