Hey guys I am looking for some help. My 2019 ram 3500 with the 68rfe trans seems to shift hard when the line locks for 4th. I never really thought much of it till today. It was stuck in 4th (with the line locked and would not shift up. I slowed down and got it to down shift no issues it has only done it once but I'm an automotive hypochondriac. With the known issues of this trans and no codes on the dash I hit the search feature. All the issues where with older trucks and found anything from shift solenoid to tcm to tcm flash to trans wiring harness. My truck has about 25k miles and thought it would last a lot long before having issues. Any advice would be greatly appreciated thanks