Before replacing the switches, I would
- check the foot switch detector to reset them and also check your switch settings.
- try cleaning them to see if that helps.
- make sure you’re still using the TRS patch cable.
Carling switches, although a little more expensive, are very durable
- Carling footswitch, SPST, momentary ON-(OFF) normally closed, or
- Carling, SPST footswitch, momentary (off-on), normally open
Either type works as the foot switch detector function will detect and adapt.
https://www.amplifiedparts.com/products/P-H552