Can I cancel my ED visa to switch to a DTV Muay Thai visa without negative consequences?

Nothing, the re entry permit requires no additional paperwork, I do it 3 times a year.the reentry permit is only to keep your current visa/extension valid, without it they would cancel said visa/extension they won't ask for financial requirements. Just remember to do the TDAC 3 days or less before you return

Fill in the online TDAC form, show your passport with the boarding card and the stamp for re-entry to the immigration officer. than put your fingers on the scanner, and look into the camera without cap and glasses. Ehole process should be less than a minute.

Sounds like questions to ask IMMIGRATION officials

Passport with visa stamp and a TDAC to reenter

Do nothing. Just leave and come back. Top tip on reentry, after they stamp you in and give your passport back, ensure they have spotted your reentry permit and put your new entry stamp with an expiry date that matches your non-o. If they just give you the standard visitor stamp and you miss it, only airport immigration can correct it. Takes a few secs to check before you leave the desk!

Likely very rare but it happened to me a couple of years ago. Luckily a while ago I was told to check it so I do it every time.

Ask them

A came back in yesterday ad made sure that the officer was aware of my re-entry stamp

Easy

Don’t forget to recalculate your 90 day reporting

Just look very shifty and sweaty, bound to sail through 🤣

Passport online arrival card.