Tested a few comparisons of tmaps between OSI/Heritage Results below. Please ignore me getting owned by the Lich Lord 
OSI Video Proof: https://streamable.com/j2i2n
1) Remove Trap Cooldown when out of range
Demonstrated intentionally in video, on OSI if you're out of range you can immediately reattempt RT, on Heritage you get skill cooldown warning
2) 1 Treasure Guardian
The initial dig up of a chest is working correctly with spawning a handful of guardians.
The issue is the remove trap guardian spawns which is limited to one being up at a time. As you see in the video, i have my dog stop attacking so the mob will live through multiple "pops" of RT and clearly no other guardian spawns. On heritage, you get a new guardian with each Pop.
3) Action while Digging
On Osi, you can cast spells etc. while the chest is being dug up. As you can see in the video, i dug then pre-cast invis and the chest continued to be dug up. On heritage, casting will stop the dig up progress.
4) RT Skill Gain
As you can see you can gain RT with each "pulse" of the skill. I intentionally did this with zero skill to show the result. On Heritage, you do not gain like this.
Miscellaneous Bugs:
1) Brittle vs Legendary Hue
On OSI, any item that is "Brittle" has the grey hue where as on heritage the grey hue is attached to items that are "Legendary Artifacts". I moused over the gear from this chest to show this and also a quick view to players on the loot differences. This is a random mid-level tmap and had some items that were better than anything ive seen on heritage drop
OSI Video Proof: https://streamable.com/j2i2n
1) Remove Trap Cooldown when out of range
Demonstrated intentionally in video, on OSI if you're out of range you can immediately reattempt RT, on Heritage you get skill cooldown warning
2) 1 Treasure Guardian
The initial dig up of a chest is working correctly with spawning a handful of guardians.
The issue is the remove trap guardian spawns which is limited to one being up at a time. As you see in the video, i have my dog stop attacking so the mob will live through multiple "pops" of RT and clearly no other guardian spawns. On heritage, you get a new guardian with each Pop.
3) Action while Digging
On Osi, you can cast spells etc. while the chest is being dug up. As you can see in the video, i dug then pre-cast invis and the chest continued to be dug up. On heritage, casting will stop the dig up progress.
4) RT Skill Gain
As you can see you can gain RT with each "pulse" of the skill. I intentionally did this with zero skill to show the result. On Heritage, you do not gain like this.
Miscellaneous Bugs:
1) Brittle vs Legendary Hue
On OSI, any item that is "Brittle" has the grey hue where as on heritage the grey hue is attached to items that are "Legendary Artifacts". I moused over the gear from this chest to show this and also a quick view to players on the loot differences. This is a random mid-level tmap and had some items that were better than anything ive seen on heritage drop
