The issue that flagged this specific pet and other pets that spawn at different slot levels has been resolved with the latest update to TC1.Yes. I tamed it myself on Europa mid May, it had 304hp, 280str, 125dex, 125int, 62/32/34/32/29 in resists and was 2-slots before training. I copied it to TC and did 3 rounds of training. Today it reset to some random stats and random resists and now 3-slots.
I traded it to @Bleak for detailed inspection.
EDIT: last stats it had before p98 is 516hp, 645str,150dex,700int, 80/75/70/70/70 and all 120 skill caps and some regens