You can see that Shang tanks every color after thor’s cascades and making some red and purple matches and counts twoards the combo points but when i make just a blue match i lost the combo and you can see that shang is not tanking yellow or green anymore.
https://streamable.com/3vc2h2
Reread his powers, he only gets combo points for purple and red.
Thanks for the clarification lol, my point is when thor’s cascades made red and purple matches and i gained combo points now i do not have to do a red or a purple match to keep the combo because thor did it for me and now i can match any other color without losing the combo, BUT NO if i made a non red or purple match ( which what i did in the video to show the bug) i lose the combo and i don’t think that should’ve happened
Oh, my bad sorry I misunderstood 
Report it in the bug report forum. I think it is a bug because other characters that require making match to trigger passive power still process even though you didn’t physically make the match. For example, Polaris.
I did, hopefully they will fix it because that’s my main team now and it’s so annoying when that happens
This has been identified as a turn issue in the discord channel. If SC goes after Thor to start the turn he doesn’t realize a match has been made. I’m updating this in case kimo forgets but they were involved in the discussion there.
Hah, that explains it then. I have also been using 1/2 Thor and just thought I’d stopped paying attention between turns rather than this bug.
Thanks for posting this here
I don’t quite follow, @Sekilicious. First, it is a bug, no? Second, you’re saying it happens after 1/2 Thor’s passive pops 5 tiles at turn start and there is a consequent match of purple or red tiles, that match is not counting in terms of maintaining SC’s Combo Point count? Yikes!
Maybe not intended, but the way it is scripted it seems. Center starts, then left, then right. So if Thor is positioned before then his turn starts before SC and any matches from cascades are not counted as being on that turn.
Oh, OK, now I know what you mean. Literally placement order affecting the outcome. That’s such a hassle… Thanks for clarifying.
That’s weird actually.
(PASSIVE) Shang-Chi maintains a relentless flow of attacks. Whenever Shang-Chi’s team makes a Red or Purple match, he gains a Combo Point (Up to 10). Each Combo Point increases Shang-Chi’s match damage by 74. If Shang-Chi ends a turn without his team having made a Red or Purple match he loses all Combo Points. (Max level 298 damage)
In the video, Thor destroys tiles passively and there were red and purple matches made due to cascades. Shang Chi’s Combo Points increased to 4. However, a blue match was made and his combo points were lost. It seems like his passives work in different point of the game. The first part of his ability triggers even when there were red/purple cascades due to Thor. However his second part of the passive doesn’t recognise them.
I think it’s how the script of the game recognizes the ‘start of turn’. Each character’s apparently turn starts separately and in order. So the combo points were technically to SC’s previous turn, not to his current one. Or something. It can be tested by putting Chavez ahead of SC and see if the red/purple matches from her passive react the same I imagine. If they don’t, it is a glitch or bug related to Thor and SC’s start of turn. Or Chavez is scripted differently.
MPQ has a lot of powers not working correctly, so it’s difficult to figure it out, unless someone has seen the code. At this point, we can only remember that his match isn’t considered a match when interacting with Thor, and other similar scenario.
Except it is. If SC is positioned Center or to the left of Thor.
That’s the correct information to remember. Creating teams with passive powers need even deeper thought on their positionings. 
I’m annoyed that if Shang is stunned, you can lose his combo points but you also can’t gain them either. I think when he’s stunned you shouldn’t lose or gain combo points.
Chavez has a similar interaction with 1/2 Thor, if he’s first, his passive can collect AP to trigger Chavez’s crit creation.
You can’t gain them, but you can maintain them when he is stunned.