Ulanzi U-Mic AM18 issue with lavalier microphones

Hello, I&bought an Ulanzi U-Mic AM18 from AliExpress and have an issue with connecting lavalier microphones tot the transmitters. I&connected a standard TRS 3.5mm mini jack lavalier mic and it wasn&detected by the transmitter, the sound was still coming from the transmitter&internal microphone. Figured out the Ulanzi Arimic has a 4-pin TRRS mini jack input so I ordered a similar microphone with a TRRS mini jack and again it wasn&working, sound was still coming from the internal mic. Then I connected the TRRS lav mic with the included TRRS to TRS adapter and it started working, the sound was coming from the lav mic, however, there was an audible ground noise, buzzing when I was not holding the transmitter in my hands. Is there something wrong with the transmitters? What type of lavalier microphones should I use to get them detected by the transmitter and avoid buzzing noise? This issue is making the wireless system unusable for me :(