I put a Glock OEM trigger/trigger bar back in it. That's when I noticed the issue. Previously it had an Apex trigger/Glock trigger bar in it with no issues.
Although I believe the trigger return spring in both housings are the factory weight (that's all I have in my parts box) a spring change did happen with the trigger housing change as both housings had springs already in them. Could be that the springs made a difference instead of the housing.
Gun is working properly right now though. Glock OEM innards in the gun all the way through.
Funny thing is, I had myself convinced that I HAD to have an Apex trigger on my Glocks to shoot them reasonably well. Then, Saturday, I shot a box stock 17.4 in a match. I did well. Hmmm.... OEM Glock trigger seems to work for me. What the????