In the short term China-BD ties might be hit because of the Rohingya issue, yet in the long run relations with India have the potential to worsen a lot more. Millions of ethnic Bengalis live in Indian states like Assam and the rise of the far right in India place an increasing number of these Bengalis under threat. Then there is the issue of rivers and dams being constructed by India. I cant see BD-China ties therefore witnessing any serious distancing in the near future as China is a neccessary balancing factor that BD can utilize to keep India in place.
BD will slowly start to drift away from China as it does not trust it anymore after Rohingyas issue.
It will be interesting to see whether a Chinese or EU design is chosen for the 6 frigates that BD will start building end of this year next year.
Yes BD will still have good trading relations with China but it's dependence on China weapons will lessen over time. I expect BD to buy a lot of weapons from Turkey and the EU next decade.