Charts freeze when advancing candles

Hello, I submitted an bug report on this issue before, but I wanted to submit a new one as the issue appears to be more widespread than I had originally thought. I am currently unable to test in Forex Tester with the strategy I am using because after advancing the candles, I inevitably reach a point where the charts lock up and I can not proceed (or go back). It appears to be an issue with the data - perhaps limited to a four-chart or multi-chart set-up, as the problem did not occur when I tested on a single-chart set up. Here is an example of the latest occurrence with 2020 data using GBPUSD (I have tested several years going back to 2006 and each inevitably locks up in the year I am testing and I cannot proceed; the same happened when I tested using EURUSD).

Here is the project link from which I took the above screenshot:

https://app.forextester.com/chart?projectId=68687be49e6386dcc5cda8b4

I hope this issue can be resolved quickly as I am unable to use Forex Texter to test my strategy until I can advance my charts more than a few months. Thank you for your attention to this matter.

Best Regards,

Dave Stalker