Does the prayer of one who pronounces the letter Jīm with a "taʿṭīsh" (palatalization/affrication, like the English "J") in prayer become invalidated?

The letter "Jeem" is a labial letter that emanates from the middle of the tongue. When it is pronounced from its point of articulation, it must be given its attributes, such as jahr (audibility) and shiddah (strength). "Ta'teesh" (palatalization) of the "Jeem" causes it to lose its attributes, making it whispered (mahmoosah) and spread (mutafashiyah). This is an error and a linguistic mistake that should not be intentionally committed in the Qur'an and prayer. If the error is unintentional or due to inability, we hope its performer is excused, and it does not invalidate the prayer.