Why has ringgit depreciated but thai baht and sing dollar appreciated?

Why has neighbouring Asean nations Thai baht and Sing dollar appreciated against USD but Malaysia ringgit has weakened? The result is soaring price of imported food prices as Malaysia face inflationary pressure due to rising food prices.according to a CNA analysis,the political uncertainty,governance risks and high corruption cases have caused the capital market to penalise the ringgit. with this our graduates are willing to work as blue collar jobs like cleaners n rubbish collectors in Singapore as the take home pay in Sing dollars is.much higher due to the exchange rate compared to the peanuts they earn in home country. So if the political leadership is lacking,the economic fundamental will weaken and our own youths will start abandoning the sinking ship and move ashore to other higher grounds.even Vietnam is doing more to pull international foreign imvestment to build a stronger economy than us.with massive traffic jams,frequent water supply disruptions,flash flooding and high corruption cases,our competitiveness is hampered.political instability only adds to our woes.